1728 + Mcqs in Time and Work Page 19 McqOptions

901.	6 skilled workers can dig a pond in 8 days while it takes 9 unskilled workers 12 days to dig it. How many days will it take 4 skilled and 18 unskilled workers to dig such a pond?
A.	2
B.	5
C.	4
D.	3
Answer» D. 3

Discussion

902.	P, Q and R can complete a piece of work in 45, 15 and 5 days respectively. In how may days all three together can complete the same work?
A.	45/14
B.	45/13
C.	9/2
D.	11/2
Answer» C. 9/2

Discussion

903.	A is twice as good a workman as B and together they finish a piece of work in 26 days. What will be the number of days taken by A alone to finish the work?
A.	45 days
B.	42 days
C.	39 days
D.	36 days
Answer» D. 36 days

Discussion

904.	If in a hostel there is sufficient food for 30 days for 40 students, then this food will last for how many days for 60 students?
A.	20 days
B.	24 days
C.	18 days
D.	15 days
Answer» B. 24 days

Discussion

905.	A water tank is 2/5th full. Inlet A can fill the tank in 12 minutes while an outlet pipe B can empty it in 6 minutes. If both the pipes are open, how long will it take to empty or fill the tank completely?
A.	It fills in 4.8 min
B.	It empties in 4.8 min
C.	It fills in 5.6 min
D.	It empties in 5.6 min
Answer» C. It fills in 5.6 min

Discussion

906.	A can do a work in 4.5 days and B in 5.5 days. If they work on it together, then in how many days will they be able to do the work?
A.	99/40
B.	9/4
C.	90/44
D.	44/9
Answer» B. 9/4

Discussion

907.	Rakesh can do a piece of work in 20 hours. After he works at it for 8 hours, how much part of the work would be left?
A.	3/5
B.	5/3
C.	2/3
D.	1/5
Answer» B. 5/3

Discussion

908.	Garima and her sister together can paint the walls of their house in 45 days. If Garima alone did the job, it would have taken her 81 days. If the duo started painting together but Garima’s sister had to leave 9 days before the completion of the work, how many days in all would it take the sisters to paint their house?
A.	49
B.	48
C.	52
D.	50
Answer» B. 48

Discussion

909.	A alone can do a work in 30 days. B alone can do the same work in 40 days. If they work on alternate days starting with A, then in how many days (correct up to two places of the decimal) the work will be completed?
A.	16.33
B.	17.25
C.	32.33
D.	34.25
Answer» E.

Discussion

910.	Pipes A and B can fill a tank in 12 hours and 16 hours respectively and pipe C can empty the full tank in 24 hours. All three pipes are opened together, but after 4 hours pipe A is closed. In how many hours from the beginning the tank be filled?
A.	24
B.	28
C.	30
D.	32
Answer» E.

Discussion

911.	Panu, Jiban, and Jalil can complete a certain task individually in 30, 20 and 60 days, respectively. Jiban started work on the task and Panu and Jalil agreed to help Jiban every third day. How many days will it take to complete the task?
A.	13
B.	12
C.	14
D.	15
Answer» E.

Discussion

912.	18 men can complete a work in 9 days. After they have worked for 5 days, 6 more men join them. How many days will they take to complete the remaining work?
A.	212
B.	2
C.	312
D.	3
Answer» E.

Discussion

913.	In the bottom of a water tank, there are two drains A and B. If only A is open, it takes 30 minutes to empty a full tank and if only B is open, it takes 20 minutes. If for 10 minutes both drains are open, then B is closed, how much time it takes to empty a full tank?
A.	18 minutes
B.	15 minutes
C.	17 minutes
D.	20 minutes
E.	None of the above/More than one of the above
Answer» C. 17 minutes

Discussion

914.	Anuj’s efficiency is 150% of Vinod efficiency. If Anuj can complete a piece of work in 10 days, then how much time (in days) will they both take to complete the same work?
A.	10
B.	8
C.	6
D.	15
Answer» D. 15

Discussion

915.	A can do a work in 15 days and B can do the work in 10 days. How many days will take to complete the work, if they do simultaneously?
A.	6 days
B.	5 days
C.	9 days
D.	8 days
Answer» B. 5 days

Discussion

916.	Pipes A and B together can empty a filled tank in \(6\frac{2}{3}\) minutes. If A takes 3 minutes more than B to empty the tank, then the time (in minutes) in which A alone would empty one-third part of the tank is:
A.	6
B.	4.5
C.	5
D.	5.5
Answer» D. 5.5

Discussion

917.	If 12 women can weave 132 m of cloth, how many will be needed to weave 187 m of cloth?
A.	22
B.	29
C.	19
D.	17
Answer» E.

Discussion

918.	Pipes A and B can fill a tank in 6 hours and 8 hours respectively and pipe C can empty the full tank in 12 hours. All three pipes are opened together, but pipe A is closed after 3 hours. In how many hours will the remaining part of the tank be filled?
A.	10
B.	11
C.	12
D.	9
Answer» E.

Discussion

919.	18 people could complete the task in 12 days. After 4 days of work, 2 of the workers left. How many days from the time the worker left will it take to complete the task now?
A.	6
B.	9
C.	10
D.	8
Answer» C. 10

Discussion

920.	A and B can together finish a work in 30 days. They worked at it for 20 days and then B left. The remaining work was done by A alone in 20 more days. B alone can do the entire work in
A.	60 days
B.	50 days
C.	54 days
D.	48 days
Answer» B. 50 days

Discussion

921.	If 18 men can cut a field in 35 days, then in how many days can 21 men cut the same field?
A.	30
B.	27
C.	28
D.	32
Answer» B. 27

Discussion

922.	A piece of work can be done by 6 men and 5 women in 6 days or 3 men and 4 women in 10 days. It can be done by 9 men and 15 women in:
A.	8 days
B.	5 days
C.	3 days
D.	2 days
Answer» D. 2 days

Discussion

923.	Pipe A takes 4 hours to fill a tank. Pipe B takes 6 hours to empty the same tank when full. If both the pipes are opened at the same time when the tank is empty, how many hours will it take for the tank to fill?
A.	10
B.	8
C.	12
D.	15
Answer» D. 15

Discussion

924.	A garrison had provisions for a certain number of days. After 10 days, 1/5 of the men left and it is found that the provisions will now last just as long as before. How long was that?
A.	30 days
B.	50 days
C.	60 days
D.	40 days
Answer» C. 60 days

Discussion

925.	One pipe fills a water tank three times faster than other pipe. If two pipes together can fill the empty tank in 30 minute how much time will the slower pipe alone take to fill the tank?
A.	4 hours
B.	2 horus
C.	5 hours
D.	3 hours
Answer» C. 5 hours

Discussion

926.	Mandar works 3 times as fast as Samarth. If Samarth can complete a job alone in 28 days, then in how many days can they together finish the job?
A.	4 days
B.	5 days
C.	8 days
D.	7 days
Answer» E.

Discussion

927.	A tap can empty a tank in one hour A second tap can empty it in 30 minutes. If both the taps operate simultaneously, how much time is needed to empty the tank?
A.	20 min
B.	30 min
C.	40 min
D.	45 min
Answer» B. 30 min

Discussion

928.	If 20 people can do a work in 20 days then in how many days the same work can be completed by 40 people?
A.	40
B.	25
C.	30
D.	10
Answer» E.

Discussion

929.	P alone can complete a piece of work in 12 days and Q can complete the same work in 18 days. With the help of R, all three finish the work in 6 days. In how many days can R alone complete the work?
A.	36 days
B.	28 days
C.	25 days
D.	30 days
Answer» B. 28 days

Discussion

930.	A can do a piece of work in 24 days. If B is 60% more efficient than A, then B can complete the work in -
A.	17 days
B.	18 days
C.	15 days
D.	12 days
Answer» D. 12 days

Discussion

931.	Prasid and Deep separately can do a certain work in 32 and 24 days respectively. They decided to do the work together and Niloy also joined them. If all of them together can complete the same work in 8 days, then how long does Niloy take to do the work alone?
A.	92/5 days
B.	96/5 days
C.	94/5 days
D.	89/5 days
Answer» C. 94/5 days

Discussion

932.	A can complete a task in 18 days while B can complete the same task in 12 days. If both work together for 6 days, and then A leaves. In how many will B complete the task?
A.	6 days
B.	2 days
C.	3 days
D.	4 days
Answer» C. 3 days

Discussion

933.	A, B, and C can do a work in 24, 16 and 12 days respectively. How many days will it take them to complete the work, if the three of them decide to work together?
A.	\(5 \frac{1}{3} \ days \)
B.	\(5 \frac{2}{3} \ days\)
C.	\(5 \frac{1}{2} \ days\)
D.	\(5 \frac{3}{4} \ days\)
Answer» B. \(5 \frac{2}{3} \ days\)

Discussion

934.	A and B can do a piece of work independently in 12 days and 16 days respectively. They worked together for 4 days and B left the work. How many more days A worked to finish the work?
A.	3 days
B.	4 days
C.	5 days
D.	6 days
Answer» D. 6 days

Discussion

935.	A and B can do a work in 21 days, A is 7/4 times as efficient as B. In how many days, A alone can complete the 100/3% of the work?
A.	13
B.	17
C.	22
D.	11
Answer» E.

Discussion

936.	A can do a work in 15 days and B in 30 days. If they work on it together, then in how many days will they be able to do 50% of the work?
A.	5
B.	6
C.	4
D.	3
Answer» B. 6

Discussion

937.	Pipes A and C can fill an empty cistern in 32 and 48 hours, respectively while pipe B can drain the filled cistern in 24 hours. If the three pipes are turned on together when the cistern is empty, how many hours will it take for the cistern to be 2/3 full?
A.	96
B.	48
C.	72
D.	64
Answer» E.

Discussion

938.	10 men working 5 hours/day earn Rs. 300. How much money will 15 men working 10 hours/day earn?
A.	Rs. 600
B.	Rs. 900
C.	Rs. 800
D.	Rs. 650
Answer» C. Rs. 800

Discussion

939.	A and B can do a work in 12 days, B and C can do the same work in 15 days, and C and A can do the same work in 20 days. A, B and C will complete the work together in:
A.	20 days
B.	28 days
C.	12 days
D.	10 days
E.	None of these
Answer» E. None of these

Discussion

940.	10 men working 8 hours day can do a work in 30 days. In how many days will 12 men working 4 hours a day take to the same work?
A.	40 days
B.	60 days
C.	50 days
D.	30 days
Answer» D. 30 days

Discussion

941.	A pipe can fill a tank in 30 minutes. Due to two leakages A and B, the fills tank would be drained off in \(1\frac{1}{2}\) hour and \(1\frac{1}{4}\) hour respectively. How long will it take to fill the tank if the pipe, A and B are left open?
A.	\(1\frac{7}{8}\;hour\)
B.	\(1\frac{1}{3}\;hour\;\)
C.	\(1\frac{4}{5}\;hour\)
D.	\(1\frac{5}{6}\;hour\)
Answer» B. \(1\frac{1}{3}\;hour\;\)

Discussion

942.	A can do 50% of the job in 16 days, B can do 1/4th of the job in 24 days. In how many days can they do 3/4th of the job working together?
A.	24
B.	9
C.	21
D.	18
Answer» E.

Discussion

943.	A and B can separately do a piece of work in 9 days and 18 days respectively. How long will they together take to do the work?
A.	9 days
B.	18 days
C.	10 days
D.	6 days
Answer» E.

Discussion

944.	A tank has two inlets which can fill it in 6 hours and 8 hours, respectively. An outlet can empty the full tank in 10 hours, if all three pipes are opened together in an empty tank how much time will they take to fill the tank completely?
A.	\(5\frac{5}{{46}}\) hours
B.	\(6\frac{5}{{23}}\) hours
C.	\(6\frac{5}{{46}}\) hours
D.	\(5\frac{5}{{23}}\) hours
Answer» E.

Discussion

945.	P is four times as efficient as Q. P can complete a work in 45 days less than Q. If both of them work together, then in how many days the work will be completed?
A.	10
B.	12
C.	15
D.	30
Answer» C. 15

Discussion

946.	Pipe A can fill a tank in 36 minutes and Pipe B can empty the tank in 45 minutes. If both the pipes are opened simultaneously, then find the time (in hours) to fill the tank to half its capacity.
A.	1.25
B.	1.5
C.	1.75
D.	2
Answer» C. 1.75

Discussion

947.	A alone can do a job in 40 days. In how many days can B alone do the job, if together they can do the job in 8 days?
A.	15
B.	10
C.	20
D.	25
Answer» C. 20

Discussion

948.	16 men complete a work in 20 days. After they have worked for 12 days, 8 more men join them. How many days will they take to complete the remaining work?
A.	14/3 days
B.	16/3 days
C.	8/3 days
D.	6 days
Answer» C. 8/3 days

Discussion

949.	How many days are required by Priya to clean the house, if Mona can do it in 5 days and together they can complete in 3 days.
A.	7.5 days
B.	9 days
C.	5.5 days
D.	12 days
Answer» B. 9 days

Discussion

950.	A labourer is paid Rs 806 for 13 days of work. If he receives Rs 1798, then for how many days did he work ?
A.	29
B.	35
C.	60
D.	40
Answer» B. 35

Discussion

Explore topic-wise MCQs in General Aptitude.

6 skilled workers can dig a pond in 8 days while it takes 9 unskilled workers 12 days to dig it. How many days will it take 4 skilled and 18 unskilled workers to dig such a pond?

P, Q and R can complete a piece of work in 45, 15 and 5 days respectively. In how may days all three together can complete the same work?

A is twice as good a workman as B and together they finish a piece of work in 26 days. What will be the number of days taken by A alone to finish the work?

If in a hostel there is sufficient food for 30 days for 40 students, then this food will last for how many days for 60 students?

A water tank is 2/5th full. Inlet A can fill the tank in 12 minutes while an outlet pipe B can empty it in 6 minutes. If both the pipes are open, how long will it take to empty or fill the tank completely?

A can do a work in 4.5 days and B in 5.5 days. If they work on it together, then in how many days will they be able to do the work?

Rakesh can do a piece of work in 20 hours. After he works at it for 8 hours, how much part of the work would be left?

A alone can do a work in 30 days. B alone can do the same work in 40 days. If they work on alternate days starting with A, then in how many days (correct up to two places of the decimal) the work will be completed?

Pipes A and B can fill a tank in 12 hours and 16 hours respectively and pipe C can empty the full tank in 24 hours. All three pipes are opened together, but after 4 hours pipe A is closed. In how many hours from the beginning the tank be filled?

Panu, Jiban, and Jalil can complete a certain task individually in 30, 20 and 60 days, respectively. Jiban started work on the task and Panu and Jalil agreed to help Jiban every third day. How many days will it take to complete the task?

18 men can complete a work in 9 days. After they have worked for 5 days, 6 more men join them. How many days will they take to complete the remaining work?

In the bottom of a water tank, there are two drains A and B. If only A is open, it takes 30 minutes to empty a full tank and if only B is open, it takes 20 minutes. If for 10 minutes both drains are open, then B is closed, how much time it takes to empty a full tank?

Anuj’s efficiency is 150% of Vinod efficiency. If Anuj can complete a piece of work in 10 days, then how much time (in days) will they both take to complete the same work?

A can do a work in 15 days and B can do the work in 10 days. How many days will take to complete the work, if they do simultaneously?

Pipes A and B together can empty a filled tank in \(6\frac{2}{3}\) minutes. If A takes 3 minutes more than B to empty the tank, then the time (in minutes) in which A alone would empty one-third part of the tank is:

If 12 women can weave 132 m of cloth, how many will be needed to weave 187 m of cloth?

Pipes A and B can fill a tank in 6 hours and 8 hours respectively and pipe C can empty the full tank in 12 hours. All three pipes are opened together, but pipe A is closed after 3 hours. In how many hours will the remaining part of the tank be filled?

18 people could complete the task in 12 days. After 4 days of work, 2 of the workers left. How many days from the time the worker left will it take to complete the task now?

A and B can together finish a work in 30 days. They worked at it for 20 days and then B left. The remaining work was done by A alone in 20 more days. B alone can do the entire work in

If 18 men can cut a field in 35 days, then in how many days can 21 men cut the same field?

A piece of work can be done by 6 men and 5 women in 6 days or 3 men and 4 women in 10 days. It can be done by 9 men and 15 women in:

Pipe A takes 4 hours to fill a tank. Pipe B takes 6 hours to empty the same tank when full. If both the pipes are opened at the same time when the tank is empty, how many hours will it take for the tank to fill?

A garrison had provisions for a certain number of days. After 10 days, 1/5 of the men left and it is found that the provisions will now last just as long as before. How long was that?

One pipe fills a water tank three times faster than other pipe. If two pipes together can fill the empty tank in 30 minute how much time will the slower pipe alone take to fill the tank?

Mandar works 3 times as fast as Samarth. If Samarth can complete a job alone in 28 days, then in how many days can they together finish the job?

A tap can empty a tank in one hour A second tap can empty it in 30 minutes. If both the taps operate simultaneously, how much time is needed to empty the tank?

If 20 people can do a work in 20 days then in how many days the same work can be completed by 40 people?

P alone can complete a piece of work in 12 days and Q can complete the same work in 18 days. With the help of R, all three finish the work in 6 days. In how many days can R alone complete the work?

A can do a piece of work in 24 days. If B is 60% more efficient than A, then B can complete the work in -

Prasid and Deep separately can do a certain work in 32 and 24 days respectively. They decided to do the work together and Niloy also joined them. If all of them together can complete the same work in 8 days, then how long does Niloy take to do the work alone?

A can complete a task in 18 days while B can complete the same task in 12 days. If both work together for 6 days, and then A leaves. In how many will B complete the task?

A, B, and C can do a work in 24, 16 and 12 days respectively. How many days will it take them to complete the work, if the three of them decide to work together?

A and B can do a piece of work independently in 12 days and 16 days respectively. They worked together for 4 days and B left the work. How many more days A worked to finish the work?

A and B can do a work in 21 days, A is 7/4 times as efficient as B. In how many days, A alone can complete the 100/3% of the work?

A can do a work in 15 days and B in 30 days. If they work on it together, then in how many days will they be able to do 50% of the work?

Pipes A and C can fill an empty cistern in 32 and 48 hours, respectively while pipe B can drain the filled cistern in 24 hours. If the three pipes are turned on together when the cistern is empty, how many hours will it take for the cistern to be 2/3 full?

10 men working 5 hours/day earn Rs. 300. How much money will 15 men working 10 hours/day earn?

A and B can do a work in 12 days, B and C can do the same work in 15 days, and C and A can do the same work in 20 days. A, B and C will complete the work together in:

10 men working 8 hours day can do a work in 30 days. In how many days will 12 men working 4 hours a day take to the same work?

A pipe can fill a tank in 30 minutes. Due to two leakages A and B, the fills tank would be drained off in \(1\frac{1}{2}\) hour and \(1\frac{1}{4}\) hour respectively. How long will it take to fill the tank if the pipe, A and B are left open?

A can do 50% of the job in 16 days, B can do 1/4th of the job in 24 days. In how many days can they do 3/4th of the job working together?

A and B can separately do a piece of work in 9 days and 18 days respectively. How long will they together take to do the work?

A tank has two inlets which can fill it in 6 hours and 8 hours, respectively. An outlet can empty the full tank in 10 hours, if all three pipes are opened together in an empty tank how much time will they take to fill the tank completely?

P is four times as efficient as Q. P can complete a work in 45 days less than Q. If both of them work together, then in how many days the work will be completed?

Pipe A can fill a tank in 36 minutes and Pipe B can empty the tank in 45 minutes. If both the pipes are opened simultaneously, then find the time (in hours) to fill the tank to half its capacity.

A alone can do a job in 40 days. In how many days can B alone do the job, if together they can do the job in 8 days?

16 men complete a work in 20 days. After they have worked for 12 days, 8 more men join them. How many days will they take to complete the remaining work?

How many days are required by Priya to clean the house, if Mona can do it in 5 days and together they can complete in 3 days.

A labourer is paid Rs 806 for 13 days of work. If he receives Rs 1798, then for how many days did he work ?