A can build up a wall in 8 days while B can break it in 3 days. A has worked for 4 days and then B joined to work with A for another 2 days only. In how many days will A alone build up the remaining part of the wall ?

${\text{13}}\frac{1}{3}{\text{ days}}$$

${\text{6}}\frac{1}{3}{\text{ days}}$$

${\text{7}}\frac{1}{3}{\text{ days}}$$

${\text{13}}\frac{1}{3}{\text{ days}}$$

45 men can complete a piece of work in 16 days. Four days they started working , 36 more men joined them. How many days will they take to complete the remaining work ?

${\text{7}}\frac{3}{4}{\text{ days}}$$

${\text{6}}\frac{2}{3}{\text{ days}}$$

${\text{7}}\frac{3}{4}{\text{ days}}$$

A alone can complete a piece of work in 18 days and B alone in 15 days, B alone worked at it for 10 days and then left the work. In how many more days, will A alone complete the remaining work ?

${\text{5}}\frac{1}{2}{\text{ days}}$$

x does$$\frac{1}{4}$$ of a job in 6 days. y completes rest of the job in 12 days. Then x and y could complete the job together in = ?

${\text{7}}\frac{1}{3}{\text{ days}}$$

${\text{8}}\frac{1}{8}{\text{ days}}$$

${\text{9}}\frac{3}{5}{\text{ days}}$$

${\text{7}}\frac{1}{3}{\text{ days}}$$

George takes 8 hours to copy a 50-page manuscript while Sonia can copy the same manuscript in 6 hours. How many hours would it take them to copy a 100-page manuscript, if they work together ?

$6\frac{6}{7}\,\,{\text{hours}}$$

$9\frac{5}{7}\,\,{\text{hours}}$$

A and B together can do a piece of work in 8 days, B and C together in 10 days, while C and A together in 6 days, if they all work together the work will be completed in ?

${\text{4}}\frac{4}{9}\,{\text{days}}$$

${\text{3}}\frac{3}{4}\,{\text{days}}$$

${\text{3}}\frac{3}{7}\,{\text{days}}$$

${\text{5}}\frac{5}{{47}}\,{\text{days}}$$

${\text{4}}\frac{4}{9}\,{\text{days}}$$

Ayesha can complete a piece of work in 16 days. Amita can complete the same piece of work in 8 days. If both of them work together in how many days can they complete the same piece of work ?

${\text{4}}\frac{2}{5}{\text{ days}}$$

${\text{5}}\frac{1}{3}{\text{ days}}$$

452 + Mcqs in Time and Work in General Aptitude Page 8 McqOptions

351.	Working together, Asha and Sudha can complete an assigned task in 20 days. However, if Asha worked alone and completed half the work and then Sudha takes over the task and completes the second half of the task, thetask will be completed in 45 days. How long will Asha take to complete the if she worked alone ? Assume that Sudha is more efficient than Asha.
A.	5 days
B.	0 days
C.	0 days
D.	5 days
Answer» D. 5 days

Discussion

352.	20 men can do a piece of work in 18 days. They worked together for 3 days, then 5 men joined. In how many days is the remaining work completed ?
A.	2 days
B.	4 days
C.	3 days
D.	5 days
Answer» B. 4 days

Discussion

353.	Two men undertake to do a piece of work for Rs. 1400. The first man alone can do this work in 7 days while the second man alone can do this work in 8 days. If they working together complete this work in 3 days with the help of a boy, how should the money be divided ?
A.	s. 600, Rs. 550, Rs. 250
B.	s. 600, Rs. 525, Rs. 275
C.	s. 600, Rs. 500, Rs. 300
D.	s. 500, Rs. 525, Rs. 375
Answer» C. s. 600, Rs. 500, Rs. 300

Discussion

354.	A man and a boy received Rs. 800 as wages for 5 days for the work they did together. The man's efficiency in the work was three times that of the boy. What are the daily wages of the boy ?
A.	s. 40
B.	s. 44
C.	s. 56
D.	s. 76
Answer» B. s. 44

Discussion

355.	40 men can complete a piece of work in 18 days. Eight days after they started working together, 10 more men joined them. How many days will they now take to complete the remaining work ?
A.	days
B.	days
C.	0 days
D.	2 days
Answer» C. 0 days

Discussion

356.	Anuj and Manoj can together paint their house in 30 days. After working for 20 days, Anuj has to go out and Manoj finished the remaining working the next 30 days. If Manoj had gone away after 20 days instead of Anuj, then Anuj would have completed the remaining work in ?
A.	5 days
B.	0 days
C.	5 days
D.	5 days
Answer» B. 0 days

Discussion

357.	A can build up a wall in 8 days while B can break it in 3 days. A has worked for 4 days and then B joined to work with A for another 2 days only. In how many days will A alone build up the remaining part of the wall ?
A.	${\text{6}}\frac{1}{3}{\text{ days}}$$
B.	days
C.	${\text{7}}\frac{1}{3}{\text{ days}}$$
D.	${\text{13}}\frac{1}{3}{\text{ days}}$$
Answer» D. ${\text{13}}\frac{1}{3}{\text{ days}}$$

Discussion

358.	A and B can together finish a work in 30 days. They worked together for 20 days and B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the job ?
A.	0 days
B.	0 days
C.	4 days
D.	0 days
Answer» E.

Discussion

359.	If 20 women can lay a road of length 100m in 10 days. 10 women can lay the same road of length 50m in = ?
A.	days
B.	5 days
C.	0 days
D.	0 days
Answer» D. 0 days

Discussion

360.	A company employed 200 workers to complete a certain work in 150 days. If only$$\frac{1}{4}$$ th of the work had been done in 50 days, then in order to complete the whole work in time, the number of additional workers to be employed were ?
A.	00
B.	00
C.	00
D.	00
Answer» B. 00

Discussion

361.	A started a ,work and left after working for 2 days. Then B was called and he finished the work in 9 days. had A left the work after working for 3 days, B would have finished the remaining work in 6 days. In how many days can each of them, working alone, finish the whole work ?
A.	.5 days, 7.5 days
B.	days, 8.5 days
C.	days, 15 days
D.	one of these
Answer» D. one of these

Discussion

362.	45 men can complete a piece of work in 16 days. Four days they started working , 36 more men joined them. How many days will they take to complete the remaining work ?
A.	days
B.	days
C.	${\text{6}}\frac{2}{3}{\text{ days}}$$
D.	${\text{7}}\frac{3}{4}{\text{ days}}$$
Answer» D. ${\text{7}}\frac{3}{4}{\text{ days}}$$

Discussion

363.	A can do a piece of work in 12 days. When he had worked for 3 days. B joined him. If they complete the work in 3 more days, in how many days can B alone finish the work ?
A.	days
B.	2 days
C.	days
D.	days
Answer» B. 2 days

Discussion

364.	A alone can complete a piece of work in 18 days and B alone in 15 days, B alone worked at it for 10 days and then left the work. In how many more days, will A alone complete the remaining work ?
A.	days
B.	${\text{5}}\frac{1}{2}{\text{ days}}$$
C.	days
D.	days
Answer» D. days

Discussion

365.	A contractor was engaged to construct a road in 16 days. After working for 12 days with 20 labours it was found that only$${\frac{5}{8}}$$ thof the road had been constructed. To complete the work in stipulated time the number of extra labours required are ?
A.	6
B.	2
C.	0
D.	8
Answer» B. 2

Discussion

366.	A and B together can complete a work in 12 days. B and C together can complete the same work in 8 days and A and C together can complete it in 16 days. In total, how many days do A, B and C together take to complete the same work ?
A.	${\text{3}}\frac{5}{{12}}$$
B.	${\text{3}}\frac{9}{{13}}$$
C.	${\text{7}}\frac{5}{{12}}$$
D.	${\text{7}}\frac{5}{{13}}$$
Answer» E.

Discussion

367.	Three friends Anne, Bob and Chris work together to do a certain job. Time it takes them to do the work together to do a certain job. The it takes them to do the work together is 6 hours less than Anne would have take alone, 1 hour less than Bob would have taken alone and half the time Chris would have taken working alone text. How long did it take them to complete the job, working together ?
A.	0 minutes
B.	0 minutes
C.	0 minutes
D.	0 minutes
Answer» D. 0 minutes

Discussion

368.	Two workers A and B are engaged to do a work. A working alone takes 8 hours more to complete the job than if both worked together. If B worked alone, he would need 41/2 hours more to complete the job than they both working together. What time would they take to do the work together ?
A.	hours
B.	hours
C.	hours
D.	hours
Answer» D. hours

Discussion

369.	A particular job can be completed by a team of 10 men in 12 days. The same job can be completed by a team of 10 women in 6 days. How many days are needed to complete the job if the two teams work together ?
A.	days
B.	days
C.	days
D.	8 days
Answer» B. days

Discussion

370.	3 men or 5 women can do a work in 12 days. How long will 6 men and 5 women take to finish the work ?
A.	0 days
B.	0 days
C.	days
D.	5 days
Answer» D. 5 days

Discussion

371.	In two days A, B and C together can finish $$\frac{1}{2}$$of a work and in another 2 days B and C together can finish $$\frac{3}{{10}}$$part of the work. Then A alone can complete the whole work in ?
A.	5 days
B.	0 days
C.	2 days
D.	4 days
Answer» C. 2 days

Discussion

372.	X, Y and Z complete a work in 6 days. X or Y alone can do the same work in 16 days. In how many days Z alone can finish the same work ?
A.	2
B.	6
C.	4
D.	6
Answer» D. 6

Discussion

373.	Two spinning machines A and B can together produce 300000 metres of cloth in 10 hours. If machine B alone can produce the same amount of cloth in 15 hours. Then how much cloth can machine A produce alone in 10 hours ?
A.	0000 metres
B.	00000 metres
C.	50000 metres
D.	00000 metres
Answer» C. 50000 metres

Discussion

374.	A can do a piece of work in 12 days while B alone can do it in 15 days. With the help of C they can finish it in 5 days. If they are paid Rs. 960 for the whole work. How much money A gets ?
A.	s. 480
B.	s. 240
C.	s. 320
D.	s. 400
Answer» E.

Discussion

375.	Janardan completes $$\frac{2}{3}$$ of his work in 10 days. Time he will take to complete of the same $$\frac{3}{5}$$work, is ?
A.	days
B.	days
C.	days
D.	days
Answer» E.

Discussion

376.	Amit and Sumit can plough a field in 4 days. Sumit alone can plough the field in 6 days. In how many days will Amit alone plough the feild ?
A.	0 days
B.	2 days
C.	4 days
D.	5 days
Answer» C. 4 days

Discussion

377.	Reena, Aastha and Shloka can independently complete a piece of work in 6 hours, 4 hours and 12 hours respectively. If they work together, how much time will they take to complete that piece of work ?
A.	hours
B.	hours
C.	hours
D.	hours
E.	ine of these
Answer» B. hours

Discussion

378.	x does$$\frac{1}{4}$$ of a job in 6 days. y completes rest of the job in 12 days. Then x and y could complete the job together in = ?
A.	${\text{9 days}}$$
B.	${\text{8}}\frac{1}{8}{\text{ days}}$$
C.	${\text{9}}\frac{3}{5}{\text{ days}}$$
D.	${\text{7}}\frac{1}{3}{\text{ days}}$$
Answer» D. ${\text{7}}\frac{1}{3}{\text{ days}}$$

Discussion

379.	If there is a reduction in the number of workers in a factory in the ratio 15 : 11 and an increment in their wages in the rate 22 : 25, then the ratio by which the total wages of the workers should be decreased is = ?
A.	: 5
B.	: 6
C.	: 7
D.	: 5
Answer» B. : 6

Discussion

380.	A can do a piece of work in 20 days and B in 40 days. If they work together for 5 days, then the fraction of the work that is left is ?
A.	$\frac{5}{8}$$
B.	$\frac{8}{{15}}$$
C.	$\frac{7}{{15}}$$
D.	$\frac{1}{{10}}$$
Answer» B. $\frac{8}{{15}}$$

Discussion

381.	A and B together complete a piece of work in T days. If A alone completes the work in T + 3 days and B alone completes the piece of work in T + 12 days, what is T ?
A.	days
B.	days
C.	2 days
D.	annot be determined
E.	one of these
Answer» F.

Discussion

382.	George takes 8 hours to copy a 50-page manuscript while Sonia can copy the same manuscript in 6 hours. How many hours would it take them to copy a 100-page manuscript, if they work together ?
A.	$6\frac{6}{7}\,\,{\text{hours}}$$
B.	${\text{9 hours}}$$
C.	$9\frac{5}{7}\,\,{\text{hours}}$$
D.	${\text{14 hours}}$$
Answer» B. ${\text{9 hours}}$$

Discussion

383.	Acan knit a pair of socks in 3 days. B can knit the same pair of socks in 9 days. If they are knitting together, then in how many days will they knit two pairs of socks ?
A.	days
B.	days
C.	${\text{4}}\frac{1}{2}$$ days
D.	days
Answer» D. days

Discussion

384.	A can finish a work in 18 days and B can do the same work in half the time take by A. Then, working together, what part of the same work they can finish in a day ?
A.	$\frac{1}{6}$$
B.	$\frac{1}{9}$$
C.	$\frac{2}{5}$$
D.	$\frac{2}{7}$$
Answer» B. $\frac{1}{9}$$

Discussion

385.	A and B together can complete a piece of work in 8 days, B alone can complete that work in 12 days. B alone worked for four days. After that how long will A alone takes to complete the work ?
A.	5 days
B.	8 days
C.	6 days
D.	0 days
Answer» D. 0 days

Discussion

386.	A and B together can do a piece of work in 8 days, B and C together in 10 days, while C and A together in 6 days, if they all work together the work will be completed in ?
A.	${\text{3}}\frac{3}{4}\,{\text{days}}$$
B.	${\text{3}}\frac{3}{7}\,{\text{days}}$$
C.	${\text{5}}\frac{5}{{47}}\,{\text{days}}$$
D.	${\text{4}}\frac{4}{9}\,{\text{days}}$$
Answer» D. ${\text{4}}\frac{4}{9}\,{\text{days}}$$

Discussion

387.	A daily-wages labourer was engaged for a certain number of days for Rs. 5750, but being absent on some of those days he paid only Rs. 5000. What were his maximum possible daily wages ?
A.	s. 125
B.	s. 250
C.	s. 375
D.	s. 500
Answer» C. s. 375

Discussion

388.	A can complete a certain work in 4 minutes, B in 5 minutes, C in 6 minutes, D in 10 minutes and E in 12 minutes. The average number of units of work completed by them per minute will be = ?
A.	0.16
B.	0.4
C.	0.8
D.	one of these
Answer» B. 0.4

Discussion

389.	Ayesha can complete a piece of work in 16 days. Amita can complete the same piece of work in 8 days. If both of them work together in how many days can they complete the same piece of work ?
A.	${\text{4}}\frac{2}{5}{\text{ days}}$$
B.	${\text{5}}\frac{1}{3}{\text{ days}}$$
C.	${\text{6 days}}$$
D.	${\text{12 days}}$$
Answer» C. ${\text{6 days}}$$

Discussion

390.	A and B can do a piece of work in 72 days, B and C can do it in 120 days and A and C can do it in 90 days. In how many days all three together can do the work ?
A.	0 days
B.	00 days
C.	0 days
D.	50 days
Answer» D. 50 days

Discussion

391.	A can finish a piece of work in 18 days and B can do the same work in half of the time taken by A. Then working together what part of the same work theycan finish in a day ?
A.	$\frac{1}{6}$$
B.	$\frac{2}{5}$$
C.	$\frac{1}{9}$$
D.	$\frac{2}{7}$$
Answer» B. $\frac{2}{5}$$

Discussion

392.	A and B together can do a piece of work in 30 days. A having worked for 16 days, B finishes the remaining work alone in 44 days. In how many days shall B finish the whole work alone?
A.	0 days
B.	0 days
C.	0 days
D.	0 days
Answer» D. 0 days

Discussion

393.	A and B can do a job together in 7 days. A is $$1\frac{3}{4}$$times as efficient as B. The same job can be done by A alone in :
A.	$9\frac{1}{3}$$days
B.	1 days
C.	$12\frac{1}{4}$$days
D.	$16\frac{1}{3}$$days
Answer» C. $12\frac{1}{4}$$days

Discussion

394.	X can do a piece of work in 40 days. He works at it for 8 days and then Y finished it in 16 days. How long will they together take to complete the work?
A.	$13\frac{1}{3}$$days
B.	5 days
C.	0 days
D.	6 days
Answer» B. 5 days

Discussion

395.	A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work was done by A in:
A.	days
B.	days
C.	0 days
D.	$10\frac{1}{2}$$days
Answer» D. $10\frac{1}{2}$$days

Discussion

396.	A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in :
A.	days
B.	0 days
C.	2 days
D.	5 days
Answer» D. 5 days

Discussion

397.	A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in:
A.	days
B.	days
C.	days
D.	2 days
Answer» C. days

Discussion

398.	Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:
A.	5
B.	6
C.	8
D.	5
Answer» C. 8

Discussion

399.	15 men can finish a piece of work in 20 days, however it takes 24 women to finish it in 20 days. If 10 men and 8 women undertake to complete the work, then they will take ?
A.	0 days
B.	0 days
C.	0 days
D.	5 days
Answer» B. 0 days

Discussion

400.	One man or two women or three boys can do a pieceof work in 88 days. One man, one woman and one boy will do it in ?
A.	4 days
B.	4 days
C.	8 days
D.	0 days
Answer» D. 0 days

Discussion

Explore topic-wise MCQs in General Aptitude.

20 men can do a piece of work in 18 days. They worked together for 3 days, then 5 men joined. In how many days is the remaining work completed ?

Two men undertake to do a piece of work for Rs. 1400. The first man alone can do this work in 7 days while the second man alone can do this work in 8 days. If they working together complete this work in 3 days with the help of a boy, how should the money be divided ?

A man and a boy received Rs. 800 as wages for 5 days for the work they did together. The man's efficiency in the work was three times that of the boy. What are the daily wages of the boy ?

40 men can complete a piece of work in 18 days. Eight days after they started working together, 10 more men joined them. How many days will they now take to complete the remaining work ?

Anuj and Manoj can together paint their house in 30 days. After working for 20 days, Anuj has to go out and Manoj finished the remaining working the next 30 days. If Manoj had gone away after 20 days instead of Anuj, then Anuj would have completed the remaining work in ?

A can build up a wall in 8 days while B can break it in 3 days. A has worked for 4 days and then B joined to work with A for another 2 days only. In how many days will A alone build up the remaining part of the wall ?

A and B can together finish a work in 30 days. They worked together for 20 days and B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the job ?

If 20 women can lay a road of length 100m in 10 days. 10 women can lay the same road of length 50m in = ?

A company employed 200 workers to complete a certain work in 150 days. If only$$\frac{1}{4}$$ th of the work had been done in 50 days, then in order to complete the whole work in time, the number of additional workers to be employed were ?

A started a ,work and left after working for 2 days. Then B was called and he finished the work in 9 days. had A left the work after working for 3 days, B would have finished the remaining work in 6 days. In how many days can each of them, working alone, finish the whole work ?

45 men can complete a piece of work in 16 days. Four days they started working , 36 more men joined them. How many days will they take to complete the remaining work ?

A can do a piece of work in 12 days. When he had worked for 3 days. B joined him. If they complete the work in 3 more days, in how many days can B alone finish the work ?

A alone can complete a piece of work in 18 days and B alone in 15 days, B alone worked at it for 10 days and then left the work. In how many more days, will A alone complete the remaining work ?

A contractor was engaged to construct a road in 16 days. After working for 12 days with 20 labours it was found that only$${\frac{5}{8}}$$ thof the road had been constructed. To complete the work in stipulated time the number of extra labours required are ?

A and B together can complete a work in 12 days. B and C together can complete the same work in 8 days and A and C together can complete it in 16 days. In total, how many days do A, B and C together take to complete the same work ?

Two workers A and B are engaged to do a work. A working alone takes 8 hours more to complete the job than if both worked together. If B worked alone, he would need 41/2 hours more to complete the job than they both working together. What time would they take to do the work together ?

A particular job can be completed by a team of 10 men in 12 days. The same job can be completed by a team of 10 women in 6 days. How many days are needed to complete the job if the two teams work together ?

3 men or 5 women can do a work in 12 days. How long will 6 men and 5 women take to finish the work ?

In two days A, B and C together can finish $$\frac{1}{2}$$of a work and in another 2 days B and C together can finish $$\frac{3}{{10}}$$part of the work. Then A alone can complete the whole work in ?

X, Y and Z complete a work in 6 days. X or Y alone can do the same work in 16 days. In how many days Z alone can finish the same work ?

Two spinning machines A and B can together produce 300000 metres of cloth in 10 hours. If machine B alone can produce the same amount of cloth in 15 hours. Then how much cloth can machine A produce alone in 10 hours ?

A can do a piece of work in 12 days while B alone can do it in 15 days. With the help of C they can finish it in 5 days. If they are paid Rs. 960 for the whole work. How much money A gets ?

Janardan completes $$\frac{2}{3}$$ of his work in 10 days. Time he will take to complete of the same $$\frac{3}{5}$$work, is ?

Amit and Sumit can plough a field in 4 days. Sumit alone can plough the field in 6 days. In how many days will Amit alone plough the feild ?

Reena, Aastha and Shloka can independently complete a piece of work in 6 hours, 4 hours and 12 hours respectively. If they work together, how much time will they take to complete that piece of work ?

x does$$\frac{1}{4}$$ of a job in 6 days. y completes rest of the job in 12 days. Then x and y could complete the job together in = ?

If there is a reduction in the number of workers in a factory in the ratio 15 : 11 and an increment in their wages in the rate 22 : 25, then the ratio by which the total wages of the workers should be decreased is = ?

A can do a piece of work in 20 days and B in 40 days. If they work together for 5 days, then the fraction of the work that is left is ?

A and B together complete a piece of work in T days. If A alone completes the work in T + 3 days and B alone completes the piece of work in T + 12 days, what is T ?

George takes 8 hours to copy a 50-page manuscript while Sonia can copy the same manuscript in 6 hours. How many hours would it take them to copy a 100-page manuscript, if they work together ?

Acan knit a pair of socks in 3 days. B can knit the same pair of socks in 9 days. If they are knitting together, then in how many days will they knit two pairs of socks ?

A can finish a work in 18 days and B can do the same work in half the time take by A. Then, working together, what part of the same work they can finish in a day ?

A and B together can complete a piece of work in 8 days, B alone can complete that work in 12 days. B alone worked for four days. After that how long will A alone takes to complete the work ?

A and B together can do a piece of work in 8 days, B and C together in 10 days, while C and A together in 6 days, if they all work together the work will be completed in ?

A daily-wages labourer was engaged for a certain number of days for Rs. 5750, but being absent on some of those days he paid only Rs. 5000. What were his maximum possible daily wages ?

A can complete a certain work in 4 minutes, B in 5 minutes, C in 6 minutes, D in 10 minutes and E in 12 minutes. The average number of units of work completed by them per minute will be = ?

Ayesha can complete a piece of work in 16 days. Amita can complete the same piece of work in 8 days. If both of them work together in how many days can they complete the same piece of work ?

A and B can do a piece of work in 72 days, B and C can do it in 120 days and A and C can do it in 90 days. In how many days all three together can do the work ?

A can finish a piece of work in 18 days and B can do the same work in half of the time taken by A. Then working together what part of the same work theycan finish in a day ?

A and B together can do a piece of work in 30 days. A having worked for 16 days, B finishes the remaining work alone in 44 days. In how many days shall B finish the whole work alone?

A and B can do a job together in 7 days. A is $$1\frac{3}{4}$$times as efficient as B. The same job can be done by A alone in :

X can do a piece of work in 40 days. He works at it for 8 days and then Y finished it in 16 days. How long will they together take to complete the work?

A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work was done by A in:

A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in :

A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in:

Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:

15 men can finish a piece of work in 20 days, however it takes 24 women to finish it in 20 days. If 10 men and 8 women undertake to complete the work, then they will take ?

One man or two women or three boys can do a pieceof work in 88 days. One man, one woman and one boy will do it in ?