1728 + Mcqs in Time and Work Page 16 McqOptions

751.	Raja and Kundan together can build a wall in 20 days, Kundan and Mahesh can build the same wall in 30 days and Mahesh and Raja can build the same wall in 24 days. In how many days can all three of them complete the same wall while working together?
A.	18
B.	16
C.	20
D.	14
Answer» C. 20

Discussion

752.	7 men and 3 women complete the work together in 10 days. 8 men and 2 women complete the same work in 8 days. How much work can be done by 12 men in one day?A. 17.5%B. 20%C. 21%D. 23%
A.	A
B.	B
C.	C
D.	D
Answer» D. D

Discussion

753.	If 3 men or 4 women can plougha field in 43 days, how long 7 men and 5 women take to plough it?
A.	3 days
B.	7 days
C.	12 days
D.	15 days
Answer» D. 15 days

Discussion

754.	A works twice as fast as B, whereas A and B together can work three times as fast as C. They all work together on a job and get a sum of Rs 17,136 for the completion of the job. The share of A is:
A.	Rs. 12,852
B.	Rs. 5,712
C.	Rs. 11,424
D.	Rs. 8,568
Answer» E.

Discussion

755.	If X and Y can complete a piece of work in 15 days, and X alone can do the same work in 30 days, find how many days will Y alone take to complete the same work?
A.	60 days
B.	45 days
C.	30 days
D.	15 days
Answer» D. 15 days

Discussion

756.	A and B can complete a task in 18 days. However, A had to leave a few days before the task was completed and hence it took 27 days in all to complete the task. If A alone could complete the work in 21 days, how many days before the work getting over did A leave?
A.	12.5
B.	14
C.	10.5
D.	9
Answer» D. 9

Discussion

757.	A and B together can do a piece of work in 10 days. A alone can do it in 30 days. The time in which B alone can do it is:
A.	20 days
B.	15 days
C.	12 days
D.	10 days
Answer» C. 12 days

Discussion

758.	Raju and Rupendra can do a job together in 9 days. Raju is \(\dfrac{9}{5}\) times as efficient as Rupendra. What part of the work can Raju alone do in 1 day?
A.	\(\dfrac{11}{126}\)
B.	\(\dfrac{7}{126}\)
C.	\(\dfrac{5}{126}\)
D.	\(\dfrac{9}{126}\)
Answer» E.

Discussion

759.	A computer game has builders and destroyers. They are 32. Some of them try to build a wall around a palace while the rest try to demolish it. Each builder can build a wall alone in 36 hours while any destroyer can demolish it in 30 hours. If all 32 are activated when there is no wall and the wall is built in 2.5 hours, how many of them are destroyers?
A.	12
B.	6
C.	8
D.	10
Answer» D. 10

Discussion

760.	10 persons can produce 1,000 units in 20 days, working 8 hours a day. In how many days will 12 persons produce 1,500 units, if they work 5 hours a day?
A.	32
B.	36
C.	40
D.	45
Answer» D. 45

Discussion

761.	Abhaya takes 6 hrs to build a doll house and Vinay takes 8 hrs to do the same. If they both decide to work together, then how many such doll houses they can construct in 48 hrs ?
A.	7
B.	14
C.	21
D.	28
Answer» C. 21

Discussion

762.	A and B separately can build a wall in 12 and 16 days, respectively. If they work for 1 day alternatively, starting with A, in how many days will the wall be built?
A.	\(7{2\ \over3}\) days
B.	\(13{2\ \over3}\) days
C.	\(12{2\ \over3}\) days
D.	\(6{2\ \over3}\) days
Answer» C. \(12{2\ \over3}\) days

Discussion

763.	A and B together can complete a work in 20 days. They started together but after 4 days A left the work. The remaining work was completed by B alone in 24 more days. In how many days can A complete the entire work alone?
A.	75
B.	25
C.	45
D.	60
Answer» E.

Discussion

764.	A sum of money is sufficient to pay A's wages for 20 days or B's wages for 30 days. The money is sufficient to pay the wages of both for
A.	15 days
B.	12 days
C.	8 days
D.	10 days
Answer» C. 8 days

Discussion

765.	A can complete a task in 40 days B can complete the same task in 60 days. How long will they take to complete the task together?
A.	24 days
B.	36 days
C.	50 days
D.	30 days
Answer» B. 36 days

Discussion

766.	Manish can complete a work in 21 days and Karan can complete the same work in 28 days. If both together work for 7 days, then what fraction of total work is left?
A.	3/5
B.	2/3
C.	7/12
D.	5/12
Answer» E.

Discussion

767.	A work can be completed by 18 boys in 24 days. If 6 boys leave after working for 12 days, then how many days will be needed to complete the remaining work?
A.	12
B.	15
C.	18
D.	24
Answer» D. 24

Discussion

768.	If 9 men and 12 boys can do a piece of work in 4 days and 4 men and 16 boys can do the same piece of work in 6 days, how long will 6 men and 24 boys take to complete the same work ?
A.	3 days
B.	4 days
C.	5 days
D.	6 days
Answer» C. 5 days

Discussion

769.	A pipe can fill a tank in 12 hours. By mistake another pipe that empties the tank is left open and the tank is filled in 16 hours. If the tank is full, how much time will the second pipe take to empty it?
A.	48 minutes
B.	48 days
C.	2.01 days
D.	48 hours
Answer» E.

Discussion

770.	Atul can do piece of work in 18 days, Aaravya is 50% more efficient than Atul. How much more time does Atul take than Aaravya to do the same piece of work?
A.	12
B.	6
C.	18
D.	10
Answer» C. 18

Discussion

771.	A and B can complete a work together in 12 days. A alone can complete same work in 18 days. A and B started doing work and after 4 days A left. In how many days remaining work will be completed by B?
A.	12 days
B.	24 days
C.	36 days
D.	18 days
Answer» C. 36 days

Discussion

772.	Raman can do a work in 5 days, Jatin can do the same work in 7 days and Sachin can do the same work in 9 days. If they do the same work together and they are paid Rs. 2860, then what is the share of Raman?
A.	1260
B.	700
C.	900
D.	870
Answer» B. 700

Discussion

773.	If 3/4 work is completed in 10/3 days, then the remaining work can be completed in
A.	2/5 days
B.	5/2 days
C.	10/9 days
D.	9/10 days
Answer» D. 9/10 days

Discussion

774.	In an Army camp ration is available for 100 soldiers for 10 days. After 2 days 60 soldiers joined. Then, for how many days will the remaining ratio last?
A.	7 days
B.	6 days
C.	5 days
D.	4 days
Answer» D. 4 days

Discussion

775.	A can do a piece of work is 8 hours while B alone can do it in 12 hours. Both A and B working together can finish the work in time?
A.	10 hours
B.	4 hours
C.	24/5 hours
D.	21/4 hours
Answer» D. 21/4 hours

Discussion

776.	P, Q and R complete a job together in 8 days. P alone can finish it in 36 dyas; Q alone can finish it in 18 days. Find how long will it take for R to finish the job alone?
A.	42 days
B.	28 days
C.	32 days
D.	24 days
Answer» E.

Discussion

777.	Hari can do 25% of a work in 5 days. How many days will it take him to do the work twenty times bigger than this?
A.	250 days
B.	200 days
C.	300 days
D.	400 days
Answer» E.

Discussion

778.	P can make a table in 16 days while Q can make it in 20 days. Q started the work and did that work for 5 days. In how many days P can complete the remaining work?
A.	10
B.	12
C.	15
D.	18
Answer» C. 15

Discussion

779.	A can do a work in 12 days while B can do same work in 18 days. How long (in days) will it take if they do the work together?
A.	\(5\frac{3}{4}\)
B.	\(7\frac{1}{5}\)
C.	\(6\frac{1}{4}\)
D.	\(6\frac{2}{5}\)
Answer» C. \(6\frac{1}{4}\)

Discussion

780.	C, D and E together can complete a work in 12 days. Efficiency of C is twice that of D and efficiency of E is thrice that of D. How many days E alone will take to complete this work?
A.	24
B.	48
C.	36
D.	4
Answer» B. 48

Discussion

781.	If 30 persons take 10 days to complete a certain work working 8 hours a day, then 40 persons should work how many hours a day so that the work is completed in 6 days?
A.	12
B.	8
C.	6
D.	10
Answer» E.

Discussion

782.	Pipe A can empty a filled tank in 5.6 hours while Pipe B can fill the same tank, when empty, in 7 hours. If Pipes A and B are alternately turned on for an hour each time, starting when the tank is full, how long will it take to empty the tank?
A.	55 hours
B.	48 hours
C.	56 hours
D.	47 hours
Answer» E.

Discussion

783.	10 men can finish a piece of work in 10 days, whereas it takes 12 women to finish it in 10 days. If 8 men and 6 women undertake to complete the work, then in how many days will they complete it?
A.	\(8\frac{9}{{13}}\)
B.	\(6\frac{9}{{13}}\)
C.	\(5\frac{9}{{13}}\)
D.	\(7\frac{9}{{13}}\)
Answer» E.

Discussion

784.	Pipes A and B can fill a tank in 30 minutes and \(37\frac{1}{2}\)minutes, respectively. C is an outlet pipe. When all the three pipes are opened together, then the tank is full in 25 minutes. In how much time (in minutes) can C alone empty \(\frac{2}{5}th\) part of the tank?
A.	24 minutes
B.	30 minutes
C.	20 minutes
D.	25 minutes
Answer» D. 25 minutes

Discussion

785.	34 men can do a piece of work in 12 days. How many days will 51 men take to do it?
A.	8
B.	5
C.	10
D.	6
Answer» B. 5

Discussion

786.	20 men can finish a certain work in 10 days, where as it takes 12 women to finish it in 10 days. If 15 men and 6 women undertake to complete the work, how many days will they take to complete it?
A.	8 days
B.	10 days
C.	6 days
D.	4 days
Answer» B. 10 days

Discussion

787.	A certain number of men can complete a book in 10 days. If there were three more men, then book could be completed in 2 days less. How many men were there in the beginning?
A.	8
B.	15
C.	12
D.	10
Answer» D. 10

Discussion

788.	A and B can do a piece of work in 12 days while B and C can do in 24 days, and C and A in 20 days. They all work together on it for 10 days and then B and C leave. How many days more A will take to complete the work?
A.	\(3\frac{2}{3}\) days
B.	\(3\frac{1}{3}\) days
C.	\(4\frac{5}{{11}}\) days
D.	\(2\frac{8}{{11}}\) days
Answer» E.

Discussion

789.	A and B can complete a piece of work in 15 days and 10 days respectively. They contracted to complete the work for Rs.30,000. The share of A in the contracted money will be:
A.	Rs.16,500
B.	Rs.18,000
C.	Rs.12,000
D.	Rs.12,500
Answer» D. Rs.12,500

Discussion

790.	P alone can finish a job in 12 days while Q can do so in 16 days. With the help of R, they have finished the job in 4 days for a contract price of ₹ 1,200. How much should R get out of it?
A.	₹ 300
B.	₹ 400
C.	₹ 500
D.	₹ 600
Answer» D. ₹ 600

Discussion

791.	Radha can do a piece of work in 16 days. Meera and Shashi together can do it in 12 days, while Radha and Shashi together can do it in 8 days. How many days will Meera take to do the work alone.
A.	40 days
B.	28 days
C.	32 days
D.	48 days
Answer» E.

Discussion

792.	On a construction site, men, women and children are working in the ratio of 9 ∶ 4 ∶ 1. Their wages are in the ratio of 8 ∶ 5 ∶ 3. If 60 women are working on this site, then total daily wages of all persons is Rs. 2,850. Daily wages of a child is equal to
A.	Rs. 5
B.	Rs. 6
C.	Rs. 7
D.	Rs. 8
Answer» C. Rs. 7

Discussion

793.	A can do a work in 8 days, B can do the same work in 10 days and C can do the same work in 12 days. If all three of them do the same work together and they are paid Rs. 7400, then what is the share (in Rs.) of B?
A.	2600
B.	3000
C.	2400
D.	2000
Answer» D. 2000

Discussion

794.	A and B working together can do 30% of the work in 6 days. B alone can do the same work in 25 days. How long will A alone take to complete the same work?
A.	75 days
B.	60 days
C.	100 days
D.	80 days
Answer» D. 80 days

Discussion

795.	If a workforce of 200 men can construct a building in 1024 days, how many men will be needed to construct the same building in 256 days?
A.	1400
B.	650
C.	1200
D.	800
Answer» E.

Discussion

796.	A can do a work in 20 days, while B can do the same work in 25 days. They started the work jointly. Few days later C also joined them and thus all of them completed the whole work in 10 days. All of them were paid total of Rs. 700. What is the share of C?
A.	Rs. 55
B.	Rs. 65
C.	Rs. 75
D.	Rs. 70
Answer» E.

Discussion

797.	A certain number of men could do a piece of work in 60 days. If there were 8 more men, it could be finished in 10 days less. The number of men in the beginning were
A.	50
B.	45
C.	40
D.	35
Answer» D. 35

Discussion

798.	A alone can do a piece of work in 30 days. B alone can do the same work in 60 days. If they work together for five days, What fraction of the work will be left?
A.	\(\frac{2}{3}\)
B.	\(\frac{1}{2}\)
C.	\(\frac{3}{4}\)
D.	\(\frac{5}{6}\)
Answer» D. \(\frac{5}{6}\)

Discussion

799.	A and B together can complete a piece of work in 12 days: B and C together can complete it in 15 days. If A is twice as good a workman as C, in how many days will A alone complete the same work?
A.	45
B.	60
C.	75
D.	30
Answer» E.

Discussion

800.	Rakesh and Ranjit can complete a task in 4 and 6 days, respectively when working alone. Ranjit started working on the task, and was joined by Rakesh after 2 days. How many days will they require to complete the remaining work?
A.	1.6
B.	0.8
C.	2
D.	1.2
Answer» B. 0.8

Discussion

Explore topic-wise MCQs in General Aptitude.

Raja and Kundan together can build a wall in 20 days, Kundan and Mahesh can build the same wall in 30 days and Mahesh and Raja can build the same wall in 24 days. In how many days can all three of them complete the same wall while working together?

7 men and 3 women complete the work together in 10 days. 8 men and 2 women complete the same work in 8 days. How much work can be done by 12 men in one day?A. 17.5%B. 20%C. 21%D. 23%

If 3 men or 4 women can plougha field in 43 days, how long 7 men and 5 women take to plough it?

A works twice as fast as B, whereas A and B together can work three times as fast as C. They all work together on a job and get a sum of Rs 17,136 for the completion of the job. The share of A is:

If X and Y can complete a piece of work in 15 days, and X alone can do the same work in 30 days, find how many days will Y alone take to complete the same work?

A and B can complete a task in 18 days. However, A had to leave a few days before the task was completed and hence it took 27 days in all to complete the task. If A alone could complete the work in 21 days, how many days before the work getting over did A leave?

A and B together can do a piece of work in 10 days. A alone can do it in 30 days. The time in which B alone can do it is:

Raju and Rupendra can do a job together in 9 days. Raju is \(\dfrac{9}{5}\) times as efficient as Rupendra. What part of the work can Raju alone do in 1 day?

10 persons can produce 1,000 units in 20 days, working 8 hours a day. In how many days will 12 persons produce 1,500 units, if they work 5 hours a day?

Abhaya takes 6 hrs to build a doll house and Vinay takes 8 hrs to do the same. If they both decide to work together, then how many such doll houses they can construct in 48 hrs ?

A and B separately can build a wall in 12 and 16 days, respectively. If they work for 1 day alternatively, starting with A, in how many days will the wall be built?

A and B together can complete a work in 20 days. They started together but after 4 days A left the work. The remaining work was completed by B alone in 24 more days. In how many days can A complete the entire work alone?

A sum of money is sufficient to pay A's wages for 20 days or B's wages for 30 days. The money is sufficient to pay the wages of both for

A can complete a task in 40 days B can complete the same task in 60 days. How long will they take to complete the task together?

Manish can complete a work in 21 days and Karan can complete the same work in 28 days. If both together work for 7 days, then what fraction of total work is left?

A work can be completed by 18 boys in 24 days. If 6 boys leave after working for 12 days, then how many days will be needed to complete the remaining work?

If 9 men and 12 boys can do a piece of work in 4 days and 4 men and 16 boys can do the same piece of work in 6 days, how long will 6 men and 24 boys take to complete the same work ?

A pipe can fill a tank in 12 hours. By mistake another pipe that empties the tank is left open and the tank is filled in 16 hours. If the tank is full, how much time will the second pipe take to empty it?

Atul can do piece of work in 18 days, Aaravya is 50% more efficient than Atul. How much more time does Atul take than Aaravya to do the same piece of work?

A and B can complete a work together in 12 days. A alone can complete same work in 18 days. A and B started doing work and after 4 days A left. In how many days remaining work will be completed by B?

Raman can do a work in 5 days, Jatin can do the same work in 7 days and Sachin can do the same work in 9 days. If they do the same work together and they are paid Rs. 2860, then what is the share of Raman?

If 3/4 work is completed in 10/3 days, then the remaining work can be completed in

In an Army camp ration is available for 100 soldiers for 10 days. After 2 days 60 soldiers joined. Then, for how many days will the remaining ratio last?

A can do a piece of work is 8 hours while B alone can do it in 12 hours. Both A and B working together can finish the work in time?

P, Q and R complete a job together in 8 days. P alone can finish it in 36 dyas; Q alone can finish it in 18 days. Find how long will it take for R to finish the job alone?

Hari can do 25% of a work in 5 days. How many days will it take him to do the work twenty times bigger than this?

P can make a table in 16 days while Q can make it in 20 days. Q started the work and did that work for 5 days. In how many days P can complete the remaining work?

A can do a work in 12 days while B can do same work in 18 days. How long (in days) will it take if they do the work together?

C, D and E together can complete a work in 12 days. Efficiency of C is twice that of D and efficiency of E is thrice that of D. How many days E alone will take to complete this work?

If 30 persons take 10 days to complete a certain work working 8 hours a day, then 40 persons should work how many hours a day so that the work is completed in 6 days?

Pipe A can empty a filled tank in 5.6 hours while Pipe B can fill the same tank, when empty, in 7 hours. If Pipes A and B are alternately turned on for an hour each time, starting when the tank is full, how long will it take to empty the tank?

10 men can finish a piece of work in 10 days, whereas it takes 12 women to finish it in 10 days. If 8 men and 6 women undertake to complete the work, then in how many days will they complete it?

Pipes A and B can fill a tank in 30 minutes and \(37\frac{1}{2}\)minutes, respectively. C is an outlet pipe. When all the three pipes are opened together, then the tank is full in 25 minutes. In how much time (in minutes) can C alone empty \(\frac{2}{5}th\) part of the tank?

34 men can do a piece of work in 12 days. How many days will 51 men take to do it?

20 men can finish a certain work in 10 days, where as it takes 12 women to finish it in 10 days. If 15 men and 6 women undertake to complete the work, how many days will they take to complete it?

A certain number of men can complete a book in 10 days. If there were three more men, then book could be completed in 2 days less. How many men were there in the beginning?

A and B can do a piece of work in 12 days while B and C can do in 24 days, and C and A in 20 days. They all work together on it for 10 days and then B and C leave. How many days more A will take to complete the work?

A and B can complete a piece of work in 15 days and 10 days respectively. They contracted to complete the work for Rs.30,000. The share of A in the contracted money will be:

P alone can finish a job in 12 days while Q can do so in 16 days. With the help of R, they have finished the job in 4 days for a contract price of ₹ 1,200. How much should R get out of it?

Radha can do a piece of work in 16 days. Meera and Shashi together can do it in 12 days, while Radha and Shashi together can do it in 8 days. How many days will Meera take to do the work alone.

On a construction site, men, women and children are working in the ratio of 9 ∶ 4 ∶ 1. Their wages are in the ratio of 8 ∶ 5 ∶ 3. If 60 women are working on this site, then total daily wages of all persons is Rs. 2,850. Daily wages of a child is equal to

A can do a work in 8 days, B can do the same work in 10 days and C can do the same work in 12 days. If all three of them do the same work together and they are paid Rs. 7400, then what is the share (in Rs.) of B?

A and B working together can do 30% of the work in 6 days. B alone can do the same work in 25 days. How long will A alone take to complete the same work?

If a workforce of 200 men can construct a building in 1024 days, how many men will be needed to construct the same building in 256 days?

A can do a work in 20 days, while B can do the same work in 25 days. They started the work jointly. Few days later C also joined them and thus all of them completed the whole work in 10 days. All of them were paid total of Rs. 700. What is the share of C?

A certain number of men could do a piece of work in 60 days. If there were 8 more men, it could be finished in 10 days less. The number of men in the beginning were

A alone can do a piece of work in 30 days. B alone can do the same work in 60 days. If they work together for five days, What fraction of the work will be left?

A and B together can complete a piece of work in 12 days: B and C together can complete it in 15 days. If A is twice as good a workman as C, in how many days will A alone complete the same work?

Rakesh and Ranjit can complete a task in 4 and 6 days, respectively when working alone. Ranjit started working on the task, and was joined by Rakesh after 2 days. How many days will they require to complete the remaining work?