653 + Mcqs in Time And Work Page 13 McqOptions

601.	If 10 persons can do a job in 20 days, then 20 person with twice the efficiency can do the same job in:
A.	5 days
B.	40 days
C.	10 days
D.	20 days
Answer» B. 40 days

Discussion

602.	A boy and girl together fill a cistern with water. The boy pours 4 liters of water every 3 minutes and girl pours 3 litres every 4 minutes. How much time will it take to fill 100 litres of water in the cistern?
A.	36 minute
B.	42 minutes
C.	48 minutes
D.	44 minutes
Answer» D. 44 minutes

Discussion

603.	While working 7 hour a day, A alone can complete a piece of work in 6 days and B alone in 8 days. In what time would they complete it together, 8 hour a day?
A.	3 days
B.	4 days
C.	2.1 days
D.	3.6 days
Answer» B. 4 days

Discussion

604.	If 10 men can do a piece of work in 12 days, the time taken by 12 men to do the same piece of work will be:
A.	12 days
B.	10 days
C.	9 days
D.	8 days
Answer» C. 9 days

Discussion

605.	If A and B together can complete a work in 18 days, A and C together in 12 days, and B and C together in 9 days, then B alone can do the work in:
A.	18 days
B.	24 days
C.	30 days
D.	40 days
Answer» C. 30 days

Discussion

606.	A and B working separately can do a piece of work in 9 and 15 days respectively. If they work for a day alternately, with A beginning, then the work will be completed in:
A.	9
B.	10
C.	11
D.	12
Answer» D. 12

Discussion

607.	A and B can compete a piece of work in 18 days. They worked together for 12 days and then A left. B alone finished the work in 15 days. If Rs. 1500 be paid for the work then A's share is:
A.	Rs. 750
B.	Rs. 800
C.	Rs. 600
D.	Rs. 900
Answer» D. Rs. 900

Discussion

608.	A and B can do a piece of work in 30 days, while B and C can do the same work in 24 days and C and A in 20 days. They all work together for 10 days when B and C leave. How many days more will A take to finish the work?
A.	18 days
B.	24 days
C.	30 days
D.	36 days
Answer» B. 24 days

Discussion

609.	Raj can do a piece of work in 20 days. He started the work and left after some days, when 25% work was done. After it Abhijit joined and completed it working for 10 days. In how many days Raj and Abhijit can do the complete work, working together?
A.	6
B.	8
C.	10
D.	12
Answer» C. 10

Discussion

610.	A tank can be filled with water by two pipes A and B together in 36 minutes. If the pipe B was stopped after 30 minutes, the tank is filled in 40 minutes. The pipe B can alone fill the tank in:
A.	45 minutes
B.	60 minutes
C.	75 minutes
D.	90 minutes
Answer» E.

Discussion

611.	A can complete a piece of work in 36 days, B in 54 days and C in 72 days. All the three began the work the work together but A left 8 days before the completion of the work and B 12 days before the completion of work. Only C worked up to the end. In how many days was the work completed?
A.	24
B.	25
C.	27
D.	30
Answer» B. 25

Discussion

612.	Ganga and Saraswati, working separately can mow field in 8 and 12 hours respectively. If they work in stretches of one hour alternately. Ganga is beginning at 9 a.m., when will the moving be completed?
A.	6:20 PM
B.	6:30 PM
C.	6:36 PM
D.	6:42 PM
Answer» D. 6:42 PM

Discussion

613.	Three taps A, B and C together can fill an empty cistern in 10 minutes. The tap A alone can fill it in 30 minutes and the tap B alone in 40 minutes. How long will the tap C alone take to fill it?
A.	16 minutes
B.	24 minutes
C.	32 minutes
D.	40 minutes
Answer» C. 32 minutes

Discussion

614.	A is thrice good a workman as B and therefore is able to finish a job in 40 days less than B. Working together they can do it in:
A.	15 days
B.	16 days
C.	18 days
D.	20 days
Answer» B. 16 days

Discussion

615.	There are three boats A, B and C, working together they carry 60 people in each trip. One day an early morning A carried 50 people in few trips alone. When it stopped carrying the passengers B and C started carrying the people together. It took a total of 10 trips to carry 300 people by A, B and C. It is known that each day on an average 300 people cross the river using only one of the 3 boats A, B and C. How many trips it would take to A to carry 150 passengers alone?
A.	15
B.	30
C.	25
D.	10
E.	None of these
Answer» B. 30

Discussion

616.	4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?
A.	35
B.	40
C.	45
D.	50
E.	None of these
Answer» C. 45

Discussion

617.	Vimal can do a piece of work in 20 days, Vimal and Kamal together can do in 12 days. If Kamal does the work only for half a day daily then in how many days the work will be completed ?
A.	14
B.	17
C.	12
D.	15
Answer» E.

Discussion

618.	A can finish a work in 18 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?
A.	5
B.	5 1/2
C.	6
D.	8
E.	None of these
Answer» D. 8

Discussion

619.	A group of 12 men can do a piece of work in 14 days and other group of 12 women can do the same work in 21 days. They begin together but 3 days before the completion of work, man's group leaves off. The total number of days to complete the work is:
A.	65/4
B.	93/3
C.	51/5
D.	60
Answer» D. 60

Discussion

620.	A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M. while machine P is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work (to print one lakh books) be finished ?
A.	11:30 A.M.
B.	12 noon
C.	12:30 P.M.
D.	1:00 P.M.
Answer» E.

Discussion

621.	There is a group of 5 boys and 2 girls. The two groups working together can do four times as much work as a boy and a girl. Ratio of working capacities of a boy and a girl is:
A.	2:1
B.	2:3
C.	1:3
D.	1:2
Answer» B. 2:3

Discussion

622.	A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?
A.	23 days
B.	37 days
C.	37 1/2 days
D.	40 days
Answer» D. 40 days

Discussion

623.	Three pipes A,B and C attached to a cistern. A can fill it in 10 min, B in 15 min, C is a waste pipe for emptying it. After opening both the pipes A and B, a man leaves the cistern and returns when the cistern should have been just full. Finding, however, that the waste pipe had left open, he closes it and the cistern now gets filled in 2 min. In how much time the pipe C, if opened alone, empty the full cistern?
A.	12 min
B.	16 min
C.	18 min
D.	15 min
E.	None of these
Answer» D. 15 min

Discussion

624.	A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days?
A.	11 days
B.	13 days
C.	20 3/17
D.	None of these
Answer» C. 20 3/17

Discussion

625.	A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:
A.	9 1/5 days
B.	9 2/7 days
C.	9 3/5 days
D.	10
Answer» D. 10

Discussion

626.	X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last?
A.	6 days
B.	10 days
C.	15 days
D.	20 days
Answer» C. 15 days

Discussion

627.	A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :
A.	1/4
B.	1/10
C.	7/15
D.	8/15
Answer» E.

Discussion

628.	10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?
A.	3
B.	5
C.	7
D.	Cannot be determined
E.	None of these
Answer» D. Cannot be determined

Discussion

629.	A pipe can fill a tank in 0.9 hours and another pipe can empty in 0.7 hours. If tank is completely filled and both pipes are opened simultaneously then 450 liters of water is removed from the tank is 2.5 hours. What is the capacity of the tank?
A.	200 liters
B.	350 liters
C.	456 liters
D.	567 liters
E.	None of these
Answer» E. None of these

Discussion

630.	P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If both P and Q work together, working 8 hours a day, in how many days can they complete the work?
A.	5 5/11
B.	5 6/11
C.	6 5/11
D.	6 6/11
E.	None of these
Answer» B. 5 6/11

Discussion

631.	A is 60% more efficient than B. In how many days will A and B working together complete a piece of work which A alone takes 15 days to finish?
A.	124/13
B.	113/13
C.	108/13
D.	131/13
E.	120/13
Answer» F.

Discussion

632.	A and B can together finish a work 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the work?
A.	40
B.	50
C.	54
D.	60
E.	None of these
Answer» E. None of these

Discussion

633.	An employee pays Rs. 26 for each day a worker and forfeits Rs. 7 for each day he idle. At the end of 56 days, if the worker got Rs. 829, for how many days did the worker remain idle?
A.	21
B.	15
C.	19
D.	13
E.	17
Answer» D. 13

Discussion

634.	A group of workers was put on a job. From second day onwards, one worker was withdrawn each day. The job was finished when the last worker was withdrawn. Had no worker been withdrawn at any stage, the group would have finished the job in 55% of the time. How many workers were there in the group?
A.	15
B.	14
C.	12
D.	10
E.	8
Answer» E. 8

Discussion

635.	Two forest officials in their respective division were involved in the harvesting of tendu leave. One division had an average output of 21 tons from a hectares and other division, which had 12 hectares of land less, dedicated to tendu leaves, got 25 tons of tendu from a hectare. As a result, the second division harvested 300 tons of tendu leaves more than the first. How many tons of tendu leaves did the first division harvest.
A.	3150
B.	3450
C.	3500
D.	3600
E.	None of these
Answer» B. 3450

Discussion

636.	Two pipes A and B can fill a cistern in 12 min and 16 min respectively. Both the pipes are opened together for a certain time but due to some obstruction the flow of water was restricted to 7/8 of full flow in pipe A and 5/6 of full in pipe B. This obstruction is removed after some time and tank is now filled in 3 min from that moment. How long was it before the full flow.
A.	8 min
B.	3 min
C.	5.6 min
D.	4.5 min
E.	None of these
Answer» E. None of these

Discussion

637.	42 women can do a piece of work in 18 days, How many women would be required do the same work in 21 days.
A.	35
B.	36
C.	37
D.	38
Answer» C. 37

Discussion

638.	Two persons having different productivity of labour, working together can reap a field in 2 days. If one-third of the field was reaped by the first man and rest by the other one working alternatively took 4 days. How long did it take for the faster person to reap the whole field working alone?
A.	3
B.	6
C.	8
D.	12
E.	None of these
Answer» B. 6

Discussion

639.	A and B completed a work together in 5 days. had A worked at twice the speed and B at half the speed, it would have taken them four days to complete the job. How much time would it take for A alone to do the work?
A.	10 days
B.	20 days
C.	25 days
D.	15 days
E.	24 days
Answer» B. 20 days

Discussion

640.	A and B working together completed a job in 5 days. If A works twice as efficiently as he actually did and B works 1/3 of actual efficiency, the work would have completed in 3 days. Find the for A to complete the job alone.
A.	6 1/2
B.	6 1/4
C.	6 3/4
D.	12 1/2
E.	None of these
Answer» C. 6 3/4

Discussion

641.	At a Tech Pvt Ltd. there are some engineering students employed as trainee engineers, belong to two eminent institutions of India. One group belongs to IIT and another to NIT. Each student of IIT works for 10 hours a day till 60 days and each student of NIT works for 8 hours a day till 80 days on the two same project. The ratio of students of IIT and that of NIT is 4:5 respectively. Students of which institution is slower in work and by how much?
A.	IITian is 20% less efficient
B.	NITian is 33.33% less efficien
C.	NIT is 25% less efficient
D.	IIT is 33.33% less efficient
E.	Cannot be determined
Answer» D. IIT is 33.33% less efficient

Discussion

642.	A group of men decided to do a job in 4 days. But since 20 men dropped out every day, the job completed at the end of the 7th day. How many men were there at the beginning?
A.	240
B.	140
C.	280
D.	150
E.	None of these
Answer» C. 280

Discussion

643.	Two typist of varying skills can do a job in 6 minutes if they work together. If the first typist typed alone for 4 minutes and then the second typist typed alone for 6 minutes, they would be left with 1/5 of the whole work. How many minutes would it take the slower typist to complete the typing job working alone ?
A.	10 minutes
B.	15 minutes
C.	12 minutes
D.	20 minutes
E.	17 minutes
Answer» C. 12 minutes

Discussion

644.	There is provision of food in fort for 1200 soldiers for 60 days. After 15 days, 200 soldiers leave the fort. Remaining food will last for how many days?
A.	56 days
B.	50 days
C.	54 days
D.	48 days
Answer» D. 48 days

Discussion

645.	Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A.	1 hour
B.	2 hours
C.	3 hours
D.	4 hours
E.	5 hours
Answer» B. 2 hours

Discussion

646.	Ram Lal is a renowned packager of fruits in Varanasi. He packs 70 mangoes or 56 guavas every day working 7 hours a day. His wife also helps him. She packs 30 mangoes or 24 guavas working 6 hours per day. Ram Lal has to pack 3300 mangoes and 2400 guavas with help of his wife. They works alternately, each day 10 hours. His wife started packaging firs day and works every alternate days. Similarly, Ram Lal started his work second day and and worked alternatively till the completion of the work. In how many days the work will finished?
A.	85 3/2
B.	85
C.	84
D.	80
E.	None of these
Answer» D. 80

Discussion

647.	X takes 4 days to complete one-third of a job. Y takes 3 days to complete one-sixth of the job and Z takes 5 days to complete half the job. If all of them work together for 3 days and X and Z quit, how long will it take for Y to complete the remaining work done.
A.	6 days
B.	8.1 days
C.	5.1 days
D.	7 days
E.	None of these
Answer» D. 7 days

Discussion

648.	An engineer undertakes a project to build a road 15 km long in 300 days and employs 45 men for the purpose. After 100 days, he finds 2.5 km of the road has been completed. Find the (approx.) number of extra men he must employ to finish the work in time.
A.	43
B.	45
C.	55
D.	68
E.	60
Answer» E. 60

Discussion

649.	Working together B and C take 50% more number of days than A, B and C together take and A and B working together, take 8/3 more number of days than A, B and C take together. If A, B and C all have worked together till the completion of the work and B has received Rs. 120 out of total earnings of Rs, 450, then in how many days did A, B and C together complete the whole work?
A.	2
B.	4
C.	6
D.	8
E.	10
Answer» C. 6

Discussion

650.	The charges per hour of internet surfing is increased by 25% then find the percentage decrease in the time period of surfing user (a net savy) who can afford only 10% increase in expenditure:
A.	22%
B.	12%
C.	15%
D.	9.09%
Answer» C. 15%

Discussion

Explore topic-wise MCQs in Arithmetic Ability.

If 10 persons can do a job in 20 days, then 20 person with twice the efficiency can do the same job in:

A boy and girl together fill a cistern with water. The boy pours 4 liters of water every 3 minutes and girl pours 3 litres every 4 minutes. How much time will it take to fill 100 litres of water in the cistern?

While working 7 hour a day, A alone can complete a piece of work in 6 days and B alone in 8 days. In what time would they complete it together, 8 hour a day?

If 10 men can do a piece of work in 12 days, the time taken by 12 men to do the same piece of work will be:

If A and B together can complete a work in 18 days, A and C together in 12 days, and B and C together in 9 days, then B alone can do the work in:

A and B working separately can do a piece of work in 9 and 15 days respectively. If they work for a day alternately, with A beginning, then the work will be completed in:

A and B can compete a piece of work in 18 days. They worked together for 12 days and then A left. B alone finished the work in 15 days. If Rs. 1500 be paid for the work then A's share is:

A and B can do a piece of work in 30 days, while B and C can do the same work in 24 days and C and A in 20 days. They all work together for 10 days when B and C leave. How many days more will A take to finish the work?

Raj can do a piece of work in 20 days. He started the work and left after some days, when 25% work was done. After it Abhijit joined and completed it working for 10 days. In how many days Raj and Abhijit can do the complete work, working together?

A tank can be filled with water by two pipes A and B together in 36 minutes. If the pipe B was stopped after 30 minutes, the tank is filled in 40 minutes. The pipe B can alone fill the tank in:

A can complete a piece of work in 36 days, B in 54 days and C in 72 days. All the three began the work the work together but A left 8 days before the completion of the work and B 12 days before the completion of work. Only C worked up to the end. In how many days was the work completed?

Ganga and Saraswati, working separately can mow field in 8 and 12 hours respectively. If they work in stretches of one hour alternately. Ganga is beginning at 9 a.m., when will the moving be completed?

Three taps A, B and C together can fill an empty cistern in 10 minutes. The tap A alone can fill it in 30 minutes and the tap B alone in 40 minutes. How long will the tap C alone take to fill it?

A is thrice good a workman as B and therefore is able to finish a job in 40 days less than B. Working together they can do it in:

4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?

Vimal can do a piece of work in 20 days, Vimal and Kamal together can do in 12 days. If Kamal does the work only for half a day daily then in how many days the work will be completed ?

A can finish a work in 18 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?

A group of 12 men can do a piece of work in 14 days and other group of 12 women can do the same work in 21 days. They begin together but 3 days before the completion of work, man's group leaves off. The total number of days to complete the work is:

There is a group of 5 boys and 2 girls. The two groups working together can do four times as much work as a boy and a girl. Ratio of working capacities of a boy and a girl is:

A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days?

A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:

X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last?

A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :

10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?

A pipe can fill a tank in 0.9 hours and another pipe can empty in 0.7 hours. If tank is completely filled and both pipes are opened simultaneously then 450 liters of water is removed from the tank is 2.5 hours. What is the capacity of the tank?

P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If both P and Q work together, working 8 hours a day, in how many days can they complete the work?

A is 60% more efficient than B. In how many days will A and B working together complete a piece of work which A alone takes 15 days to finish?

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

An employee pays Rs. 26 for each day a worker and forfeits Rs. 7 for each day he idle. At the end of 56 days, if the worker got Rs. 829, for how many days did the worker remain idle?

A group of workers was put on a job. From second day onwards, one worker was withdrawn each day. The job was finished when the last worker was withdrawn. Had no worker been withdrawn at any stage, the group would have finished the job in 55% of the time. How many workers were there in the group?

42 women can do a piece of work in 18 days, How many women would be required do the same work in 21 days.

Two persons having different productivity of labour, working together can reap a field in 2 days. If one-third of the field was reaped by the first man and rest by the other one working alternatively took 4 days. How long did it take for the faster person to reap the whole field working alone?

A and B completed a work together in 5 days. had A worked at twice the speed and B at half the speed, it would have taken them four days to complete the job. How much time would it take for A alone to do the work?

A and B working together completed a job in 5 days. If A works twice as efficiently as he actually did and B works 1/3 of actual efficiency, the work would have completed in 3 days. Find the for A to complete the job alone.

A group of men decided to do a job in 4 days. But since 20 men dropped out every day, the job completed at the end of the 7th day. How many men were there at the beginning?

There is provision of food in fort for 1200 soldiers for 60 days. After 15 days, 200 soldiers leave the fort. Remaining food will last for how many days?

X takes 4 days to complete one-third of a job. Y takes 3 days to complete one-sixth of the job and Z takes 5 days to complete half the job. If all of them work together for 3 days and X and Z quit, how long will it take for Y to complete the remaining work done.

An engineer undertakes a project to build a road 15 km long in 300 days and employs 45 men for the purpose. After 100 days, he finds 2.5 km of the road has been completed. Find the (approx.) number of extra men he must employ to finish the work in time.

The charges per hour of internet surfing is increased by 25% then find the percentage decrease in the time period of surfing user (a net savy) who can afford only 10% increase in expenditure: