1728 + Mcqs in Time and Work Page 12 McqOptions

551.	Pipes A and B are filling pipes while pipe C is an emptying pipe. A and B can fill a tank in 72 and 90 minutes respectively. When all the three pipes are opened together, the tank gets filled in 2 hours. A and B are opened together for 12 minutes, then closed and C is opened. The tank will be empty after:
A.	18 minutes
B.	16 minutes
C.	15 minutes
D.	12 minutes
Answer» B. 16 minutes

Discussion

552.	A man can finish a piece of work in 15 days. A woman can complete the same work in 10 days. Both work together for 5 days, then the man leaves. How many days will be taken by the woman to finish the remaining work?
A.	\(1\frac{2}{3}\)
B.	\(2\frac{2}{3}\)
C.	\(1\frac{1}{3}\)
D.	\(2\frac{1}{2}\)
Answer» B. \(2\frac{2}{3}\)

Discussion

553.	P, Q and R can do some work in 11 days, 20 days and 55 days respectively. In how many days can the work be done, if P gets the assistance of Q and R on alternate days?
A.	7
B.	9
C.	8
D.	10
Answer» D. 10

Discussion

554.	A water tank has two holes. The 1st hole alone empties the tank in 8 minutes and 2nd hole alone empties the tank in 12 minutes. If water leaks out at a constant rate, how many minutes will it take, if both the holes together empty the tank?
A.	\(\dfrac{4}{5}\)
B.	\(4 \dfrac{4}{5}\)
C.	\(4\dfrac{3}{5}\)
D.	\(4\dfrac{2}{5}\)
Answer» C. \(4\dfrac{3}{5}\)

Discussion

555.	A can do a piece of work in 24 days. If B is 50% more efficient than A, then in how many days can B do the same work?
A.	12
B.	16
C.	18
D.	15
Answer» C. 18

Discussion

556.	Ramesh and Ganesh can together complete a work in 16 days. After seven days of working together, Ramesh got sick and his efficiency fell by 30%. As a result, they completed the work in 17 days instead of 16 days. If Ganesh had worked alone after Ramesh got sick, in how many days would he have completed the remaining work?
A.	13.5
B.	14.5
C.	11
D.	12
Answer» B. 14.5

Discussion

557.	A alone can complete a piece of work in 12 days. A and B together can complete it in 8 days. How long will B alone take to complete the work?
A.	18 days
B.	24 days
C.	16 days
D.	20 days
Answer» C. 16 days

Discussion

558.	A can do \(\frac{1}{2}\) of a piece of work in 8 days while B can do \(\frac{1}{3}\) of the same work in 8 days. In how many days can both do it together?
A.	9.6 days
B.	10.5 days
C.	11.2 days
D.	16 days
Answer» B. 10.5 days

Discussion

559.	24 men working 8 hours a day can finish a work in 10 days. Working 10 hours a day, how many men are required to finish the work in 6 days?
A.	34
B.	36
C.	32
D.	30
Answer» D. 30

Discussion

560.	P can do a piece of work in 10 days. After working for 4 days, P leaves and Q finishes the remaining work in 9 days. If they had worked together from the beginning, then how many days would they take to complete the work?
A.	6 days
B.	9 days
C.	8 days
D.	7 days
Answer» B. 9 days

Discussion

561.	A can do a work in 6 days. B takes 8 days to complete it. C takes as long as A and B would take working together. How long will it take B and C to complete the work together?
A.	\(1 \frac 1 2\) days
B.	4 days
C.	5 days
D.	\(2 \frac 2 5\) days
Answer» E.

Discussion

562.	Person A, B and C can complete a task together in 81 days. A and B can completed the same task together in 97.2 days. B can C can complete the same task together in 162 days. In how many days can B alone complete the task?
A.	243
B.	225
C.	261
D.	234
Answer» B. 225

Discussion

563.	A alone can do a piece of work in 15 days. A is 20% less efﬁcient than B. In how many days can B do the work alone?
A.	12
B.	18
C.	20
D.	24
Answer» B. 18

Discussion

564.	In a hostel, there is stock of 6,190.80 kg of wheat for feeding 105 students for 22 days. After 5 days, 14 students joined the hostel. How many days will the balance wheat feed the students, if all students consume the same quantity per day?
A.	11 days
B.	15 days
C.	13 days
D.	17 days
Answer» C. 13 days

Discussion

565.	A, B and C can complete a work in 5, 10 and 30 days respectively. In how many days A, B and C together can complete the same work?
A.	4
B.	2
C.	3
D.	3.5
Answer» D. 3.5

Discussion

566.	A hose has three pipes. Pipe x and pipe y fill the hose and pipe z empties the hose. The pipe x can fill the tank alone in 15 hours. The pipe y can fill the same hose in 12 hours alone. The pipe z can completely empty the hose in 20 hours alone. If all the pipes are opened at the same time, how much time will it take to fill the fill the hose?
A.	10 hours
B.	12 hours
C.	8 hours
D.	6 hours
Answer» B. 12 hours

Discussion

567.	In completing a task, A is thrice as fast as C and B is twice as fast as C. When all three work together, they can compete the task in 15 days. In how many days can A alone complete the task?
A.	20 days
B.	30 days
C.	45 days
D.	90 days
Answer» C. 45 days

Discussion

568.	A pipe can fill a tank in 4 hours and a leak at the bottom can empty that full tank in 6 hours. If after the tank is \(\frac{1}{3}\) full, the leak is completely closed, how much time from beginning will it take for the tank to get filled completely?
A.	12 hours
B.	4 hours
C.	9 hours
D.	\(\frac{{20}}{3}\) hours
Answer» E.

Discussion

569.	Anjali can complete a job in 10 days. Banu can do it in 5 days. In how many days can the job be done, if they work together?
A.	3.5 days
B.	7.5 days
C.	6 days
D.	3 days 8 hours
Answer» E.

Discussion

570.	A can do a piece of work in 10 days and B can do it in 15 days. Number of days to complete the work if they work together is:
A.	6 days
B.	9 days
C.	7 days
D.	5 days
Answer» B. 9 days

Discussion

571.	A group of men decided to do a work in 20 days, but five of them remained absent. If the rest of the group could complete the work in 24 days, then how many men were in the original group?
A.	30
B.	35
C.	25
D.	20
Answer» B. 35

Discussion

572.	P, Q and R undertook a work for Rs. 48000. Together P and Q complete 5/12th part of the work. What is the share (in Rs.) of R?
A.	21000
B.	28000
C.	27000
D.	31000
Answer» C. 27000

Discussion

573.	10 herons eat 10 fish in 10 minutes. So in how many minutes will 20 herons eat 20 fish?
A.	10
B.	20
C.	40
D.	30
Answer» B. 20

Discussion

574.	Pipe A can fill a tank in 6 hours. Pipe B can fill the same tank in 8 hours. Pipe A, B and C together can fill the same tank in 12 hours. Then which of the following statements is true for pipe C?
A.	It can fill the tank in 4 hours 40 minutes
B.	It can fill the tank in 4 hours 48 minutes
C.	It can empty the tank in 4 hours 48 minutes
D.	It can empty the tank in 4 hours 40 minutes
Answer» D. It can empty the tank in 4 hours 40 minutes

Discussion

575.	10 persons begin to work together on a job, but after some days, 4 persons leave. As a result, the job, which could have been completed in 40 days, was completed in 50 days. How many days after commencement of the work did the four persons leave?
A.	25
B.	24
C.	30
D.	20
Answer» B. 24

Discussion

576.	Amit can complete a work in 25 days and Punit can complete the same work in 20 days. Punit alone worked at it for 10 days and then left the work. In how many days will Amit alone complete the remaining work?
A.	\(11\frac{1}{2}\)
B.	\(12\frac{1}{2}\)
C.	\(13\frac{1}{2}\)
D.	\(14\frac{3}{2}\)
Answer» C. \(13\frac{1}{2}\)

Discussion

577.	If a man cuts the grass of a lawn in T minutes, what part of the lawn can he cut in 30 minutes?
A.	T/30
B.	T-30
C.	30-T
D.	30/T
Answer» E.

Discussion

578.	A man can paint a house working every day in 20 days. He decides to take a break for 1 day after every 4 days. In how many days will he complete the work now?
A.	40
B.	25
C.	30
D.	24
Answer» E.

Discussion

579.	If 10 men or 20 boys can make 260 mats in 20 days, then 8 men and 4 boys will make how many mats in 20 days?
A.	260
B.	240
C.	280
D.	520
Answer» B. 240

Discussion

580.	Ram is five times as efficient as Rohit. Ram can complete a work in 60 days less than Rohit. If both of them work together then in how many days the work would be completed ?
A.	10
B.	12.5
C.	15
D.	20
Answer» C. 15

Discussion

581.	A tank has inlet pipe which can fill it in 4 minutes. There is also a waste pipe in the tank. When both inlet and waste pipes are opened, the empty tank takes 20 minutes to fill. How long will the waste pipe take to empty the full tank when inlet pipe is closed?
A.	10 minutes
B.	5 minutes
C.	16 minutes
D.	24 minutes
Answer» C. 16 minutes

Discussion

582.	A, B and C can do a job working alone in 6, 9 and 18 days respectively. They all work together for 1 day, then A and B quit. How many days C working alone will take to complete the remainder of the job?
A.	9
B.	6
C.	12
D.	10
Answer» D. 10

Discussion

583.	Pipes A and B can fill a tank in 16 hours and 24 hours, respectively, and pipe C alone can empty the full tank in x hours. All the pipes were opened together at 10:30 AM, but C was closed at 2:30 PM. If the tank was full at 8:30 PM on the same day, then what is the value of x?
A.	96
B.	45
C.	64
D.	48
Answer» B. 45

Discussion

584.	A and B have to type a book together containing 120 pages. A takes 9 hrs to type 36 pages and B takes 5 hrs to type 40 pages. A typed first 60 pages alone and the last 60 pages were typed by A and B together. How much time (in hours) will be taken to type the complete book?
A.	24
B.	20
C.	12
D.	15
Answer» C. 12

Discussion

585.	Pipes A and B can empty a filled tank in 20 hours and 15 hours respectively, while pipe C alone can fill the same tank in x hours. The three pipes were opened simultaneously and they took 40 minutes to empty the 1/18 (one-eighteenth) part of the tank. The value of x is:
A.	21
B.	30
C.	26
D.	24
Answer» C. 26

Discussion

586.	A earns Rs. 40 per hour and works for 12 hours. B earns Rs. 60 per hour and works for 10 hours. Find the ratio of their per day wages.
A.	15 ∶ 4
B.	6 ∶ 5
C.	4 ∶ 5
D.	5 ∶ 4
Answer» D. 5 ∶ 4

Discussion

587.	L alone can do a work in 30 days. M alone can do the same in 45 days. L, M and N together can do the same work in 9 days. In how many days can N alone do the work?
A.	19
B.	20
C.	18
D.	22
Answer» D. 22

Discussion

588.	James can mop and weep the floor in 24 minutes and Jill can do the same in 12 minutes. If they work together, then how long will it take for the work to be completed?
A.	6 mins
B.	8 mins
C.	10 mins
D.	12 mins
Answer» C. 10 mins

Discussion

589.	In a press, there are three types of printing machines, P, Q and R. Machine P can print 10,000 pages in 8 hours, machine Q can finish the same task in 10 hours and machine R can finish the same task in 15 hours. All the three machines start the work at 9 : 00 a.m. Machine P breaks down at 11 : 00 a.m. and machines Q and R finish the task. The approximate time of completion of the job is
A.	2 : 05 p.m.
B.	2 : 30 p.m.
C.	1 : 50 p.m.
D.	1 : 30 p.m.
Answer» E.

Discussion

590.	Arjun started a task and left it after working for 2 days. Then, Bharath was called and he completed the task in 9 days, If Arjun alone had worked for 3 days, Bharath alone would have finished the remaining work In 6 days. In how many days can Arjun alone complete the task?
A.	8 days
B.	12 days
C.	5 days
D.	10 days
Answer» D. 10 days

Discussion

591.	Mayank, Deepak and Pawan, each of them working alone can complete a work in 5, 10 and 15 days respectively. If all three of them work together to complete a work and earn a total of Rs. 11,000, What will be Deepak’s share of the earnings?
A.	Rs. 2000
B.	Rs. 6000
C.	Rs. 4000
D.	Rs. 3000
Answer» E.

Discussion

592.	A and B together complete a work in 20 days. B alone can complete the same work in 60 days. They took Rs. 36000 to complete the work. What will be the share of A (in Rs.)?
A.	18000
B.	24000
C.	26000
D.	22000
Answer» C. 26000

Discussion

593.	A can complete a certain work in 30 days. B is 25% more efficient than A and C is 20% more efficient than B. They all worked together for 3 days. B alone will complete the remaining work in:
A.	20 days
B.	15 days
C.	18 days
D.	12 days
Answer» C. 18 days

Discussion

594.	A tank can be filled by two taps, A and B in 12 hours and 16 hours, respectively. The full tank can be emptied by a third tap C in 8 hours. If all the taps are turned on at the same time, then how much time I needed to fill the empty tank completely?
A.	16 hours
B.	40 hours
C.	48 hours
D.	24 hours
Answer» D. 24 hours

Discussion

595.	A man can do a piece of work in 5 days, but with the help of his son he can do it in 3 days. In what time can the son do it alone?
A.	7.5 days
B.	8 days
C.	7 days
D.	6 days
Answer» B. 8 days

Discussion

596.	A alone can complete the work in 10 days, B alone can do same work in 12 days and C alone can do the same work in 15 days. They jointly complete the work and earn Rs. 4500. What is the share of C?
A.	1800
B.	900
C.	1200
D.	1500
Answer» D. 1500

Discussion

597.	An inlet pipe can fill a tank in 10 hours and an outlet pipe can empty the completely filled tank in 20 hours. Both the pipes are opened at 6.30 a.m. When will the tank get filled?
A.	12.00 midnight
B.	2 a.m. next day
C.	2.30 a.m. next day
D.	1 a.m. next day
Answer» D. 1 a.m. next day

Discussion

598.	A is twice as good a workman as B and together they finish a piece of work in 22 days. In how many days will A alone finish the same work?
A.	30 days
B.	44 days
C.	33 days
D.	11 days
Answer» D. 11 days

Discussion

599.	A can do \(\frac{3}{5}th\) of a work in 12 days, B can do \(\frac{1}{3}rd\) of that work in 15 days. They worked together for 12 days and then A left the work , B alone will complete the remaining work in?
A.	9 days
B.	6 days
C.	4 days
D.	5 days
Answer» C. 4 days

Discussion

600.	If 14 men can do a job in 8 days, what fraction of the job can be done by 3 men in 4 days ?
A.	3/14
B.	1/12
C.	3/28
D.	3/26
Answer» D. 3/26

Discussion

Explore topic-wise MCQs in General Aptitude.

A man can finish a piece of work in 15 days. A woman can complete the same work in 10 days. Both work together for 5 days, then the man leaves. How many days will be taken by the woman to finish the remaining work?

P, Q and R can do some work in 11 days, 20 days and 55 days respectively. In how many days can the work be done, if P gets the assistance of Q and R on alternate days?

A water tank has two holes. The 1st hole alone empties the tank in 8 minutes and 2nd hole alone empties the tank in 12 minutes. If water leaks out at a constant rate, how many minutes will it take, if both the holes together empty the tank?

A can do a piece of work in 24 days. If B is 50% more efficient than A, then in how many days can B do the same work?

A alone can complete a piece of work in 12 days. A and B together can complete it in 8 days. How long will B alone take to complete the work?

A can do \(\frac{1}{2}\) of a piece of work in 8 days while B can do \(\frac{1}{3}\) of the same work in 8 days. In how many days can both do it together?

24 men working 8 hours a day can finish a work in 10 days. Working 10 hours a day, how many men are required to finish the work in 6 days?

P can do a piece of work in 10 days. After working for 4 days, P leaves and Q finishes the remaining work in 9 days. If they had worked together from the beginning, then how many days would they take to complete the work?

A can do a work in 6 days. B takes 8 days to complete it. C takes as long as A and B would take working together. How long will it take B and C to complete the work together?

Person A, B and C can complete a task together in 81 days. A and B can completed the same task together in 97.2 days. B can C can complete the same task together in 162 days. In how many days can B alone complete the task?

A alone can do a piece of work in 15 days. A is 20% less efﬁcient than B. In how many days can B do the work alone?

In a hostel, there is stock of 6,190.80 kg of wheat for feeding 105 students for 22 days. After 5 days, 14 students joined the hostel. How many days will the balance wheat feed the students, if all students consume the same quantity per day?

A, B and C can complete a work in 5, 10 and 30 days respectively. In how many days A, B and C together can complete the same work?

In completing a task, A is thrice as fast as C and B is twice as fast as C. When all three work together, they can compete the task in 15 days. In how many days can A alone complete the task?

A pipe can fill a tank in 4 hours and a leak at the bottom can empty that full tank in 6 hours. If after the tank is \(\frac{1}{3}\) full, the leak is completely closed, how much time from beginning will it take for the tank to get filled completely?

Anjali can complete a job in 10 days. Banu can do it in 5 days. In how many days can the job be done, if they work together?

A can do a piece of work in 10 days and B can do it in 15 days. Number of days to complete the work if they work together is:

A group of men decided to do a work in 20 days, but five of them remained absent. If the rest of the group could complete the work in 24 days, then how many men were in the original group?

P, Q and R undertook a work for Rs. 48000. Together P and Q complete 5/12th part of the work. What is the share (in Rs.) of R?

10 herons eat 10 fish in 10 minutes. So in how many minutes will 20 herons eat 20 fish?

Pipe A can fill a tank in 6 hours. Pipe B can fill the same tank in 8 hours. Pipe A, B and C together can fill the same tank in 12 hours. Then which of the following statements is true for pipe C?

10 persons begin to work together on a job, but after some days, 4 persons leave. As a result, the job, which could have been completed in 40 days, was completed in 50 days. How many days after commencement of the work did the four persons leave?

Amit can complete a work in 25 days and Punit can complete the same work in 20 days. Punit alone worked at it for 10 days and then left the work. In how many days will Amit alone complete the remaining work?

If a man cuts the grass of a lawn in T minutes, what part of the lawn can he cut in 30 minutes?

A man can paint a house working every day in 20 days. He decides to take a break for 1 day after every 4 days. In how many days will he complete the work now?

If 10 men or 20 boys can make 260 mats in 20 days, then 8 men and 4 boys will make how many mats in 20 days?

Ram is five times as efficient as Rohit. Ram can complete a work in 60 days less than Rohit. If both of them work together then in how many days the work would be completed ?

A tank has inlet pipe which can fill it in 4 minutes. There is also a waste pipe in the tank. When both inlet and waste pipes are opened, the empty tank takes 20 minutes to fill. How long will the waste pipe take to empty the full tank when inlet pipe is closed?

A, B and C can do a job working alone in 6, 9 and 18 days respectively. They all work together for 1 day, then A and B quit. How many days C working alone will take to complete the remainder of the job?

Pipes A and B can fill a tank in 16 hours and 24 hours, respectively, and pipe C alone can empty the full tank in x hours. All the pipes were opened together at 10:30 AM, but C was closed at 2:30 PM. If the tank was full at 8:30 PM on the same day, then what is the value of x?

A and B have to type a book together containing 120 pages. A takes 9 hrs to type 36 pages and B takes 5 hrs to type 40 pages. A typed first 60 pages alone and the last 60 pages were typed by A and B together. How much time (in hours) will be taken to type the complete book?

Pipes A and B can empty a filled tank in 20 hours and 15 hours respectively, while pipe C alone can fill the same tank in x hours. The three pipes were opened simultaneously and they took 40 minutes to empty the 1/18 (one-eighteenth) part of the tank. The value of x is:

A earns Rs. 40 per hour and works for 12 hours. B earns Rs. 60 per hour and works for 10 hours. Find the ratio of their per day wages.

L alone can do a work in 30 days. M alone can do the same in 45 days. L, M and N together can do the same work in 9 days. In how many days can N alone do the work?

James can mop and weep the floor in 24 minutes and Jill can do the same in 12 minutes. If they work together, then how long will it take for the work to be completed?

Arjun started a task and left it after working for 2 days. Then, Bharath was called and he completed the task in 9 days, If Arjun alone had worked for 3 days, Bharath alone would have finished the remaining work In 6 days. In how many days can Arjun alone complete the task?

Mayank, Deepak and Pawan, each of them working alone can complete a work in 5, 10 and 15 days respectively. If all three of them work together to complete a work and earn a total of Rs. 11,000, What will be Deepak’s share of the earnings?

A and B together complete a work in 20 days. B alone can complete the same work in 60 days. They took Rs. 36000 to complete the work. What will be the share of A (in Rs.)?

A can complete a certain work in 30 days. B is 25% more efficient than A and C is 20% more efficient than B. They all worked together for 3 days. B alone will complete the remaining work in:

A tank can be filled by two taps, A and B in 12 hours and 16 hours, respectively. The full tank can be emptied by a third tap C in 8 hours. If all the taps are turned on at the same time, then how much time I needed to fill the empty tank completely?

A man can do a piece of work in 5 days, but with the help of his son he can do it in 3 days. In what time can the son do it alone?

A alone can complete the work in 10 days, B alone can do same work in 12 days and C alone can do the same work in 15 days. They jointly complete the work and earn Rs. 4500. What is the share of C?

An inlet pipe can fill a tank in 10 hours and an outlet pipe can empty the completely filled tank in 20 hours. Both the pipes are opened at 6.30 a.m. When will the tank get filled?

A is twice as good a workman as B and together they finish a piece of work in 22 days. In how many days will A alone finish the same work?

A can do \(\frac{3}{5}th\) of a work in 12 days, B can do \(\frac{1}{3}rd\) of that work in 15 days. They worked together for 12 days and then A left the work , B alone will complete the remaining work in?

If 14 men can do a job in 8 days, what fraction of the job can be done by 3 men in 4 days ?