1728 + Mcqs in Time and Work in General Aptitude Page 6 McqOptions

251.	A takes \(5\dfrac{1}{3}\) days and B takes \(8\dfrac{1}{3}\) days more than the time taken by A and B together to complete a work. In how many days will they finish the work together?
A.	\(3\dfrac{1}{3}\)
B.	\(9\dfrac{2}{3}\)
C.	\(6\dfrac{2}{3}\)
D.	\(8\dfrac{2}{3}\)
Answer» D. \(8\dfrac{2}{3}\)

Discussion

252.	‘A’ is twice as good a workman as ‘B’ and together they finish a work in 18 days. In how many days ‘A’ alone will finish the work ?
A.	31 days
B.	25 days
C.	27 days
D.	29 days
Answer» D. 29 days

Discussion

253.	L alone can do a work in 100 hours. M alone can do the same in 150 hours. L, M and N together can do the same work in 30 hours. In how many hours can N alone do the work?
A.	65
B.	60
C.	40
D.	90
Answer» C. 40

Discussion

254.	P and Q can finish a work in 10 days and 5 days, respectively. Q worked for 2 days and left the job. In how many days can P alone finish the remaining work??
A.	10 days
B.	6 days
C.	4 days
D.	8 days
Answer» C. 4 days

Discussion

255.	Rakshanth is twice as good a tradesman as Verma and together they finish a piece of work in 19 days. In how many days will Verma alone finish the work?A. 38B. 57C. 76D. 50
A.	D
B.	B
C.	A
D.	C
Answer» C. A

Discussion

256.	In a computer game, there are builders and destroyers. Together there are 20 of them. Some of them try to build a wall around a castle while the rest try to demolish it. Each of the builders can build the wall alone in 15 hours while any of the destroyers can demolish it in 10 hours. If all 20 builders and destroyers are made active when there is no wall and the wall get built in 3 hours, how many of them are destroyers?
A.	7
B.	5
C.	8
D.	6
Answer» E.

Discussion

257.	A and B can do a piece of work in 10 days, B and C can do it in 12 days. C and A in 15 days. In how many days will c finish it alone?
A.	30 days
B.	24 days
C.	60 days
D.	40 days
Answer» E.

Discussion

258.	A and B can complete a piece of work in 15 days and 10 days respectively. They got a contract to complete the work for Rs. 75000. The share of A (in Rs.) in the contracted money will be:
A.	Rs. 45,000
B.	Rs. 40,000
C.	Rs. 30,000
D.	Rs. 35,000
Answer» D. Rs. 35,000

Discussion

259.	A pipe fills 2/6 of a cistern in 15 min. How long will it take to completely fill the cistern?
A.	28 min
B.	45 min
C.	108 min
D.	100 min
Answer» C. 108 min

Discussion

260.	A man and a woman can do a work together in 12 days. Their efficiencies are in the ratio 2 ∶ 3. Working alone, in how many days can the woman complete the work?
A.	10
B.	15
C.	30
D.	20
Answer» E.

Discussion

261.	A and B can together do a piece of work in 10 days. If A works with twice of his efficiency and B works with 1/3rd of his efficiency, then the work gets completed in 6 days. In how many days can A and B do the work alone respectively?
A.	25/2, 50
B.	20/3, 20
C.	30, 20/3
D.	50/3, 25
Answer» B. 20/3, 20

Discussion

262.	P is twice as good as workman as Q and together they finish a piece of work in 28 days. In how many days will P alone finish the work?
A.	28
B.	35
C.	49
D.	42
Answer» E.

Discussion

263.	4 boys from school A and 6 boys from school B together can set up an exhibition in 5 days, which 5 boys from school A and 10 boys from school C together can do in 4 days or 3 boys from school B and 4 boys from school C together can do in 10 days. Then how many boys from school A can set up the exhibition in one day?
A.	20
B.	60
C.	40
D.	80
Answer» D. 80

Discussion

264.	P and Q can do a work individually in 15 days and 20 days respectively. Find the respective ratio of their efficiencies.
A.	4 : 3
B.	3 : 4
C.	4 : 5
D.	5 : 4
Answer» B. 3 : 4

Discussion

265.	A pump can fill a tank in 4 hours, but due to a leak, the tank now gets filled in 5 hours. How long will it take the leakage to empty the tank when it is full?
A.	9 hours
B.	4.5 hours
C.	20 hours
D.	1 hour
Answer» D. 1 hour

Discussion

266.	If Rohit alone can complete one-fourth of a work in 32 days, then in how many days Rohit alone can complete the whole work?
A.	96 days
B.	128 days
C.	64 days
D.	118 days
Answer» C. 64 days

Discussion

267.	A pipe can fill a cistern in 20 minutes whereas the cistern when full can be emptied by a leak in 28 minutes. When both are opened,the time taken to fill the cistern is:
A.	48 min
B.	70 min
C.	80 min
D.	60 min
Answer» C. 80 min

Discussion

268.	4 men can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 men in 8 days ?
A.	12
B.	16
C.	8
D.	4
Answer» C. 8

Discussion

269.	Pipe A and pipe B can fill up a tank in 40 min and 80 min respectively. Both the pipes are opened simultaneously for some time and pipe B is closed. If the total time to fill up the tank is 30 minutes, then how long the pipe B was open for?
A.	5 min
B.	10 min
C.	15 min
D.	20 min
Answer» E.

Discussion

270.	If 12 men or 20 women can do a work in 54 days, then in how many days can 9 men and 12 women together do the work?
A.	38 days
B.	32 days
C.	40 days
D.	35 days
Answer» D. 35 days

Discussion

271.	P, Q and R together can complete a work in 20 days. P alone can complete the work in 40 days, Q alone in 60 days then in how many days R alone can complete the work?
A.	60
B.	80
C.	40
D.	120
Answer» E.

Discussion

272.	A and B are working on an assignment. A takes 6 hours to type 32 pages on a computer, while B takes 5 hours to type 40 pages. How much time will they take, working together simultaneously, on two different computers to type an assignment of 16 pages?
A.	34 hours
B.	16 hours
C.	27 hours
D.	28 hours
Answer» B. 16 hours

Discussion

273.	A tank has two inlets which can fill it in 4 hours and 6 hours, respectively, an outlet can empty the full tank in 8 hours. Both inlet taps are opened for an hour and closed. Then the three pipes are opened together. The remaining part of the tank fills in:
A.	\(5\frac{1}{3}\) hours
B.	2 hours
C.	\(3\frac{1}{4}\) hours
D.	3 hours
Answer» C. \(3\frac{1}{4}\) hours

Discussion

274.	6 men and 8 women can do a piece of work in 10 days while 13 men and 24 women can do the same in 4 days. The time taken by 10 men and 12 women in doing the same type of work will be:
A.	\(6\frac{3}{4}\)
B.	\(6\frac{1}{4}\)
C.	\(6\frac{1}{2}\)
D.	None of the above
Answer» C. \(6\frac{1}{2}\)

Discussion

275.	A can do a work in 12 days and B can do same work in 18 days. After 5 days of working together, how much work will be left?
A.	7/25
B.	11/36
C.	5/13
D.	5/12
Answer» C. 5/13

Discussion

276.	A is thrice as efficient as B and therefore he takes 30 days less to complete the work than B. If A and B work together, how many days will it take to complete the work?
A.	\(11 \frac{1}{4}\)
B.	\(11 \frac{3}{4}\)
C.	\(11 \frac{11}{4}\)
D.	11 days
Answer» B. \(11 \frac{3}{4}\)

Discussion

277.	A and B can do a certain work in 12 days, B & C can do the same work in 15 days, while A and C can do the same work. In 36 days. In how many days will all three together complete that work?
A.	11.15 days
B.	11.20 days
C.	10.75 days
D.	11.25 days
Answer» E.

Discussion

278.	If 12 workers take 12 days to do one work, then how many days will it take for 8 workers to do the same work?
A.	20
B.	15
C.	18
D.	25
Answer» D. 25

Discussion

279.	A and B together can complete a piece of work in 4 days. If A alone can complete the same work in 12 days, in how many days can B alone complete that work?
A.	4 days
B.	6 days
C.	8 days
D.	10 days
Answer» C. 8 days

Discussion

280.	In a press there are three types of printing machines A, B, and C. Machine A can print ten thousand pages in 8 hours, machine B can do the same task in 10 hours, and machine C can do the same task in 12 hours. All three machines start the task at 9∶00 a.m. Machine A breaks down at 11∶00 a.m. and machines B and C continue working. At 12∶00 noon machine B also breaks down and machine C alone has to complete the remaining task. What is the approximate time of completion of the task?
A.	1∶54 p.m.
B.	2∶24 p.m.
C.	12∶45 p.m.
D.	2∶40 p.m.
Answer» C. 12∶45 p.m.

Discussion

281.	If 5 men with 7 boys can earn Rs. 4185 in 7 days and 2 men with 3 boys can earn Rs. 1230 in 5 days, in what time will 7 men with 6 boys earn Rs. 21189?
A.	15 days
B.	20 days
C.	30 days
D.	25 days
E.	None of these
Answer» D. 25 days

Discussion

282.	A and B can complete a work in 1.8 days. However, if A works alone, then half of the work is done and he takes a break and then B alone finishes the remaining work, it takes 3.75 days to complete the work. If B is more efficient than A, how much time would B have taken to complete this task himself?
A.	3.3
B.	2.25
C.	3
D.	2.7
Answer» D. 2.7

Discussion

283.	A is twice as skilled a workman as B and together they finish a piece of work in 18 days. In how many days will A finish the work?
A.	27 days
B.	18 days
C.	36 days
D.	None of the above
Answer» B. 18 days

Discussion

284.	A and B can do a piece of work together in 15 days while A alone can do it in 25 days. They start working together but B leaves 5 days before the completion of the work. For how many days did A and B work together?
A.	10
B.	13
C.	9
D.	12
Answer» E.

Discussion

285.	A contractor takes a contract to complete a road in 60 days and employed 105 labours. After 25 days, he found that one-third of the work is completed. How many more labours he required to complete the remaining work in time?
A.	75
B.	105
C.	150
D.	45
Answer» E.

Discussion

286.	48 people could complete a task in 17 days. After 6 days 4 of the workers left, how many days from then will it take to complete the remaining task?
A.	12
B.	13
C.	15
D.	616
Answer» B. 13

Discussion

287.	Pipes A and B can fill a tank in 72 minutes and 96 minutes and pipe C can empty it at the rate of 1.5 liters/minute. The three pipes filled it in 288 minutes. Find the capacity of the tank.
A.	96 litres
B.	72 litres
C.	108 litres
D.	60 litres
Answer» C. 108 litres

Discussion

288.	E and F can do a work in 10 days. If E alone can do it in 30 days, F alone can do it in _____ days.A. 15B. 20C. 25D. 18
A.	A
B.	C
C.	D
D.	B
Answer» B. C

Discussion

289.	Parvesh is three times as efficient as Dinesh. Parvesh takes 20 days less than Dinesh to complete a book. If both of them work together, then in how many days will the book be completed?
A.	7.5
B.	8
C.	10
D.	6.5
Answer» B. 8

Discussion

290.	Humans and robots can both perform a job but at different efficiencies. Fifteen humans and five robots working together take thirty days to finish the job, whereas five humans and fifteen robots working together take sixty days to finish it. How many days will fifteen humans working together (without any robot) take to finish it?
A.	45
B.	36
C.	40
D.	32
Answer» E.

Discussion

291.	Pipes A and B can fill a tank in 10 hours and 40 hours respectively. C is an outlet pipe attached to the tank. If all the three pipes are opened simultaneously, it takes 80 minutes more time than A and B together takes to fill the tank. If A and B kept open for 7 hours and closed and then C opened. How much time will C take to empty the tank :
A.	49 hours
B.	38.5 hours
C.	42 hours
D.	45.5 hours
Answer» B. 38.5 hours

Discussion

292.	If 10 unskilled workers finish a job in 4 days, how many skilled workers should be hired, who are twice efficient than unskilled workers to finish the job in 2 days.
A.	2
B.	12
C.	10
D.	5
Answer» D. 5

Discussion

293.	Akshat is twice as good a typist as Lokesh and together they finish a piece of work in 7 days. In how many days will Lokesh alone finish the work?
A.	14
B.	10
C.	28
D.	21
Answer» E.

Discussion

294.	In a palace, supplies are available for 35 days for only 75 people. 15 Guests arrive in the place for vacation on day 1 itself. For how many days will these supplies be sufficient for all these people.
A.	90 days
B.	11.25 days
C.	42 days
D.	29.16 days
Answer» E.

Discussion

295.	A and B can do a piece of work in 18 days. B and C together can do it in 30 days. If A is twice as good a workman as C, find in how many days B alone can do the work?
A.	90 days
B.	80 days
C.	75 days
D.	100 days
Answer» B. 80 days

Discussion

296.	Pipes A and B can empty a full tank in 8 and 12 hours, respectively. C is a filling pipe. All the three pipes were opened together at the same time and one-sixth of the tank got emptied in one hour. C alone can fill the tank in:
A.	20 hours
B.	30 hours
C.	24 hours
D.	25 hours
Answer» D. 25 hours

Discussion

297.	Manish, Mukesh and Sachin are Accountants. Mukesh can file a return in 5 hours and Sachin in 4 hours alone. All three together can do it in 2 hours. In what time (in hrs.) will Manish do the work?A. 15B. 20C. 17D. 10
A.	C
B.	B
C.	A
D.	D
Answer» C. A

Discussion

298.	An inlet pipe can fill an empty tank in 2 hours and an outlet pipe can empty the full tank in 3 hours. In what time will the empty tank get filled, if the inlet and the outlet pipes are opened together?
A.	3/2 h
B.	3 h
C.	6 h
D.	2 h
Answer» D. 2 h

Discussion

299.	In a relief camp of 550 men, food was enough for 28 days. If 150 more people joined the camp, the same amount of food will be enough for
A.	25 days
B.	10 days
C.	35 days
D.	22 days
Answer» E.

Discussion

300.	Anil can do a piece of work in 14 days which Rohit can do in 21 days. They worked together for few days after which Anil left. If Rohit worked alone for 3 days, find the total number of days it took to complete the whole work.A. 31/5B. 51/5C. 21/5D. 13/5
A.	D
B.	B
C.	C
D.	A
Answer» C. C

Discussion

Explore topic-wise MCQs in General Aptitude.

A takes \(5\dfrac{1}{3}\) days and B takes \(8\dfrac{1}{3}\) days more than the time taken by A and B together to complete a work. In how many days will they finish the work together?

‘A’ is twice as good a workman as ‘B’ and together they finish a work in 18 days. In how many days ‘A’ alone will finish the work ?

L alone can do a work in 100 hours. M alone can do the same in 150 hours. L, M and N together can do the same work in 30 hours. In how many hours can N alone do the work?

P and Q can finish a work in 10 days and 5 days, respectively. Q worked for 2 days and left the job. In how many days can P alone finish the remaining work??

Rakshanth is twice as good a tradesman as Verma and together they finish a piece of work in 19 days. In how many days will Verma alone finish the work?A. 38B. 57C. 76D. 50

A and B can do a piece of work in 10 days, B and C can do it in 12 days. C and A in 15 days. In how many days will c finish it alone?

A and B can complete a piece of work in 15 days and 10 days respectively. They got a contract to complete the work for Rs. 75000. The share of A (in Rs.) in the contracted money will be:

A pipe fills 2/6 of a cistern in 15 min. How long will it take to completely fill the cistern?

A man and a woman can do a work together in 12 days. Their efficiencies are in the ratio 2 ∶ 3. Working alone, in how many days can the woman complete the work?

A and B can together do a piece of work in 10 days. If A works with twice of his efficiency and B works with 1/3rd of his efficiency, then the work gets completed in 6 days. In how many days can A and B do the work alone respectively?

P is twice as good as workman as Q and together they finish a piece of work in 28 days. In how many days will P alone finish the work?

P and Q can do a work individually in 15 days and 20 days respectively. Find the respective ratio of their efficiencies.

A pump can fill a tank in 4 hours, but due to a leak, the tank now gets filled in 5 hours. How long will it take the leakage to empty the tank when it is full?

If Rohit alone can complete one-fourth of a work in 32 days, then in how many days Rohit alone can complete the whole work?

A pipe can fill a cistern in 20 minutes whereas the cistern when full can be emptied by a leak in 28 minutes. When both are opened,the time taken to fill the cistern is:

4 men can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 men in 8 days ?

Pipe A and pipe B can fill up a tank in 40 min and 80 min respectively. Both the pipes are opened simultaneously for some time and pipe B is closed. If the total time to fill up the tank is 30 minutes, then how long the pipe B was open for?

If 12 men or 20 women can do a work in 54 days, then in how many days can 9 men and 12 women together do the work?

P, Q and R together can complete a work in 20 days. P alone can complete the work in 40 days, Q alone in 60 days then in how many days R alone can complete the work?

A and B are working on an assignment. A takes 6 hours to type 32 pages on a computer, while B takes 5 hours to type 40 pages. How much time will they take, working together simultaneously, on two different computers to type an assignment of 16 pages?

A tank has two inlets which can fill it in 4 hours and 6 hours, respectively, an outlet can empty the full tank in 8 hours. Both inlet taps are opened for an hour and closed. Then the three pipes are opened together. The remaining part of the tank fills in:

6 men and 8 women can do a piece of work in 10 days while 13 men and 24 women can do the same in 4 days. The time taken by 10 men and 12 women in doing the same type of work will be:

A can do a work in 12 days and B can do same work in 18 days. After 5 days of working together, how much work will be left?

A is thrice as efficient as B and therefore he takes 30 days less to complete the work than B. If A and B work together, how many days will it take to complete the work?

A and B can do a certain work in 12 days, B & C can do the same work in 15 days, while A and C can do the same work. In 36 days. In how many days will all three together complete that work?

If 12 workers take 12 days to do one work, then how many days will it take for 8 workers to do the same work?

A and B together can complete a piece of work in 4 days. If A alone can complete the same work in 12 days, in how many days can B alone complete that work?

If 5 men with 7 boys can earn Rs. 4185 in 7 days and 2 men with 3 boys can earn Rs. 1230 in 5 days, in what time will 7 men with 6 boys earn Rs. 21189?

A is twice as skilled a workman as B and together they finish a piece of work in 18 days. In how many days will A finish the work?

A and B can do a piece of work together in 15 days while A alone can do it in 25 days. They start working together but B leaves 5 days before the completion of the work. For how many days did A and B work together?

A contractor takes a contract to complete a road in 60 days and employed 105 labours. After 25 days, he found that one-third of the work is completed. How many more labours he required to complete the remaining work in time?

48 people could complete a task in 17 days. After 6 days 4 of the workers left, how many days from then will it take to complete the remaining task?

Pipes A and B can fill a tank in 72 minutes and 96 minutes and pipe C can empty it at the rate of 1.5 liters/minute. The three pipes filled it in 288 minutes. Find the capacity of the tank.

E and F can do a work in 10 days. If E alone can do it in 30 days, F alone can do it in _____ days.A. 15B. 20C. 25D. 18

Parvesh is three times as efficient as Dinesh. Parvesh takes 20 days less than Dinesh to complete a book. If both of them work together, then in how many days will the book be completed?

If 10 unskilled workers finish a job in 4 days, how many skilled workers should be hired, who are twice efficient than unskilled workers to finish the job in 2 days.

Akshat is twice as good a typist as Lokesh and together they finish a piece of work in 7 days. In how many days will Lokesh alone finish the work?

In a palace, supplies are available for 35 days for only 75 people. 15 Guests arrive in the place for vacation on day 1 itself. For how many days will these supplies be sufficient for all these people.

A and B can do a piece of work in 18 days. B and C together can do it in 30 days. If A is twice as good a workman as C, find in how many days B alone can do the work?

Pipes A and B can empty a full tank in 8 and 12 hours, respectively. C is a filling pipe. All the three pipes were opened together at the same time and one-sixth of the tank got emptied in one hour. C alone can fill the tank in:

Manish, Mukesh and Sachin are Accountants. Mukesh can file a return in 5 hours and Sachin in 4 hours alone. All three together can do it in 2 hours. In what time (in hrs.) will Manish do the work?A. 15B. 20C. 17D. 10

An inlet pipe can fill an empty tank in 2 hours and an outlet pipe can empty the full tank in 3 hours. In what time will the empty tank get filled, if the inlet and the outlet pipes are opened together?

In a relief camp of 550 men, food was enough for 28 days. If 150 more people joined the camp, the same amount of food will be enough for

Anil can do a piece of work in 14 days which Rohit can do in 21 days. They worked together for few days after which Anil left. If Rohit worked alone for 3 days, find the total number of days it took to complete the whole work.A. 31/5B. 51/5C. 21/5D. 13/5