1728 + Mcqs in Time and Work Page 15 McqOptions

701.	If A and B together do a job in 7.5 days and if A could do the job in 10 days if he worked alone. How many days would B take to do the job if he worked alone?
A.	30
B.	40
C.	25
D.	50
Answer» B. 40

Discussion

702.	A tank can be filled in 9 hours. Because of a leak, it takes 10 hours to fill. In how much time will the leak alone empty the full tank?
A.	75 hours
B.	80 hours
C.	60 hours
D.	90 hours
Answer» E.

Discussion

703.	P and R can do a piece of work in 30 days, P and Q can do it in 45 days while Q and R can finish it in 60 days. In how many days can R alone finish the work?
A.	45 days
B.	48 days
C.	64 days
D.	72 days
Answer» E.

Discussion

704.	200 bulbs are used 4 hours per day and expenditure of 6 days is Rs. 40. Then how many bulbs should be used 3 hours per day so that expenditure of 15 days is Rs. 48 ?
A.	72
B.	800
C.	128
D.	90
Answer» D. 90

Discussion

705.	P can complete a work in 15 days and Q in 24 days. They began the work together but Q left the work 2 days before its completion. In how many days was the work completed?
A.	12
B.	10
C.	9
D.	11
Answer» C. 9

Discussion

706.	Pipe A fills a tank at 50 m3/hour. Pipe B takes 4 hours to fill the tank. When opened together, they fill the tank in 2 hours. What is the volume of the tank?
A.	150 m3
B.	100 m3
C.	225 m3
D.	200 m3
Answer» E.

Discussion

707.	M, N and P undertook a work for Rs. 50000. Together M and N complete (7/10)th part of the work. What is the share (in Rs) of P?
A.	20000
B.	10000
C.	15000
D.	25000
Answer» D. 25000

Discussion

708.	A can do a piece of work in 48 days. If B is 50% more efficient than A, then in how many days can B do the same work?
A.	32
B.	24
C.	18
D.	15
Answer» B. 24

Discussion

709.	P and Q together can complete a work in 105 days. Q and R together can complete the same work in 90 days, P and R together can complete the same work in 126 days. In how many days P, Q and R together can complete the same work?
A.	70 days
B.	74 days
C.	76 days
D.	72 days
Answer» B. 74 days

Discussion

710.	If P, Q and R can complete a job in 24, 16 and 12 days respectively, how long will they take to complete the job working together?
A.	6 days
B.	5 days 8 hours
C.	5 days 12 hours
D.	5 days
Answer» C. 5 days 12 hours

Discussion

711.	Rakesh and Birjesh together can complete a work in 15 days. Rakesh alone can complete the same work in 30 days. If Birjesh does the work for only half a day daily; then in how many days will Rakesh and Birjesh together complete the work?
A.	20 days
B.	10 days
C.	11 days
D.	15 days
Answer» B. 10 days

Discussion

712.	4 men and 5 women can complete a work in 15 days, whereas 9 men and 6 women can do it in 10 days. To complete the same work in 7 days, how many women should assist 4 men?
A.	11
B.	13
C.	12
D.	14
Answer» C. 12

Discussion

713.	A does a work in 12 days and B does the same work in 16 days. In how many days they will do the same work, working together?
A.	\(5\frac{1}{7}days\)
B.	\(8\frac{6}{7}days\)
C.	\(6\frac{3}{7}days\)
D.	\(6\frac{6}{7}days\)
Answer» E.

Discussion

714.	Pipes A and B can fill a tank in 36 hours and 48 hours, respectively. Both pipes are opened together for 9 hours and then A is closed. Pipe B alone will fill the remaining part of the tank now in :
A.	27 hours
B.	25 hours
C.	\(20\frac{1}{2}\) hours
D.	24 hours
Answer» B. 25 hours

Discussion

715.	If 12 men or 18 women can complete the harvesting of a field in 14 days, then in how many days can 8 men and 16 women complete the harvesting of the same farm, working at the same speed?
A.	9
B.	5
C.	7
D.	8
Answer» B. 5

Discussion

716.	P and Q can do a work in 8 days. Q and R can do the same work in 12 days. P, Q and R together can complete it in 6 days. P and R together can do it in how many days?
A.	4 days
B.	8 days
C.	5 days
D.	6 days
Answer» C. 5 days

Discussion

717.	Pipes A and B can fill a tank in 16 hours and 24 hours respectively whereas pipe C can empty the full tank in 40 hours. All three pipes are opened together, but pipe A is closed after 8 hours. After how many hours, the remaining part of tank will be filled?
A.	26
B.	22
C.	30
D.	28
Answer» C. 30

Discussion

718.	A and B can do a piece of work in 18 days; B and C can do it in 24 days; A and C can do it in 36 days. In how many days will A, B and C finish it, working together?
A.	16 days
B.	18 days
C.	12 days
D.	14 days
Answer» B. 18 days

Discussion

719.	A tire has 3 punctures. The first puncture alone could expel the air of that tire in 7 minutes, second alone in 14 minutes and third alone in 28 minutes. If the air exits at a constant rate, then how much time (in minutes) will it take for all the punctures to expel the entire air from the tire?
A.	5
B.	7
C.	4
D.	6
Answer» D. 6

Discussion

720.	A and B can complete a task in 1.5 days. However, A had to leave a few days before the task was completed and hence it took 2 days in all to complete the task. If A alone could complete the work in 2.625 days, how many days before the work getting over did A leave?
A.	1.125
B.	0.625
C.	0.375
D.	0.875
Answer» E.

Discussion

721.	6 men can plough 6 acres of field in 6 days. Then how many days will one man take to plough 1 acre of field?
A.	6
B.	1
C.	18
D.	24
Answer» B. 1

Discussion

722.	P works twice as fast as Q. If Q can complete a task in 36 days independently, the number of days in which P and Q can together complete the task in:
A.	12 days
B.	9 days
C.	16 days
D.	18 days
Answer» B. 9 days

Discussion

723.	A and C together can complete a work in 120 days, C and E together can complete the same work in 80 days and A and E together can complete the same work in 160 days. In how many days A, C and E together can complete the same work?
A.	120 / 13 days
B.	480 / 13 days
C.	240 / 13 days
D.	960 / 13 days
Answer» E.

Discussion

724.	Joe can complete ¼ of a task in 10 days while jack complete the whole work in 45/2 days. How long will Joe and Jack take to complete the task working together?
A.	\(9\frac{3}{8}\) days
B.	\(6\frac{1}{{10}}\)days
C.	\(14\frac{2}{5}\)days
D.	17 days
Answer» D. 17 days

Discussion

725.	A, B and C can complete a work in 20, 12 and 8 days respectively. In how many days A and B together can complete that work?
A.	\(\frac{{65}}{7}\) days
B.	\(\frac{{41}}{3}\) days
C.	\(\frac{{71}}{3}\) days
D.	\(\frac{{30}}{4}\) days
Answer» E.

Discussion

726.	A field can be reaped by 12 men or 18 women in 14 days. In how many days can 8 men and 16 women reap it?
A.	26 days
B.	24 days
C.	9 days
D.	8 days
Answer» D. 8 days

Discussion

727.	A and B together can do a certain work in x days. Working alone, A and B can do the same work in (x + 8) and (x + 18) days, respectively. A and B together will complete 5/6 of the same work in:
A.	8 days
B.	12 days
C.	9 days
D.	10 days
Answer» E.

Discussion

728.	A, B and C can do a piece of work in 36, 54 and 72 days respectively. They started the work, but A left 8 days before the completion of the work while B left 12 days before the completion. The number of days for which C worked is
A.	4
B.	8
C.	26
D.	24
Answer» E.

Discussion

729.	3/4 part of a tank is filled with oil. After taking out 60 litres of oil the tank is 2/3 part full. What is the capacity (in litres) of the tank?
A.	240
B.	360
C.	600
D.	720
Answer» E.

Discussion

730.	A and B can complete a piece of work in 30 days and 80 days, respectively, and were paid Rs. 480 collectively for the complete work. However, they take the assistance of C and complete the work in 20 days. Find the share of C.
A.	Rs. 160
B.	Rs. 120
C.	Rs. 40
D.	Rs. 80
Answer» B. Rs. 120

Discussion

731.	A and B together take 6 days to complete a task, B and C together take 15 days, and A, B and C take 5 days. Working together, how much time will A and C take to complete that task?
A.	6.5 days
B.	6 days
C.	5 days
D.	5.5 days
Answer» C. 5 days

Discussion

732.	A can do a piece of work in 9 days and B in 18 days. They began the work together but 3 days before the completion of work A leaves. The time taken to complete the work is:
A.	5 days
B.	8 days
C.	7 days
D.	11 days
Answer» C. 7 days

Discussion

733.	A and B undertake to do a work for Rs. 6,000. A alone and B alone can do that work in 6 and 8 days respectively. With the help of C, they have finished the work in 3 days. The share of B's is:
A.	Rs. 2,400
B.	Rs. 2,250
C.	Rs. 2,000
D.	Rs. 1,500
Answer» C. Rs. 2,000

Discussion

734.	A can do a work in 15 days and B in 20 days. Both of them work for 5 days, then the remaining work is:
A.	5/12
B.	1/3
C.	5/6
D.	7/12
Answer» B. 1/3

Discussion

735.	A can do a piece of work alone in 10 days, whereas B alone can do it in 15 days. They work together and get Rs. 2000 for their work. What is the share of B?
A.	Rs. 1200
B.	Rs. 1000
C.	Rs. 800
D.	Rs. 1600
Answer» D. Rs. 1600

Discussion

736.	A can do a piece of work in 15 days and B in 20 days. If they together work on it for 4 days, then the fraction of the work that is left is:
A.	\(\frac{1}{4}\)
B.	\(\frac{7}{15}\)
C.	\(\frac{8}{15}\)
D.	\(\frac{8}{10}\)
Answer» D. \(\frac{8}{10}\)

Discussion

737.	If 15 men can do a piece of work in 14 days, how many men will be needed to do the work in 30 days?
A.	8
B.	10
C.	7
D.	9
Answer» D. 9

Discussion

738.	Nikhil is thrice as efficient as Kanak and can finish an assignment in 6 days less than Kanak. How many days Kanak will take to finish the same assignment?
A.	4 days
B.	7 days
C.	9 days
D.	11 days
E.	5 days
Answer» D. 11 days

Discussion

739.	Both A and B taps fill a bucket in 12 minutes and 15 minutes respectively. How long will it take to fill the bucket if both taps are opened simultaneously?
A.	6 minutes 40 seconds
B.	8 minutes 25 seconds
C.	7 minutes 15 seconds
D.	7 minutes 25 seconds
Answer» B. 8 minutes 25 seconds

Discussion

740.	36 men can build a wall 140 m long in 21 days, in how many days would 15 men be able to construct a similar wall 50 m long?
A.	20 days
B.	22 days
C.	22.5 days
D.	18 days
Answer» E.

Discussion

741.	A can complete a piece of work in 6 days while B can complete the same work in 12 days. If they work together and complete it then, the portion of the work done by A is:
A.	\(\frac{1}{4}\)
B.	\(\frac{1}{2}\)
C.	\(\frac{2}{3}\)
D.	\(\frac{1}{3}\)
Answer» D. \(\frac{1}{3}\)

Discussion

742.	A does \(\frac{1}{2}\) as much work as B and C does \(\frac{1}{2}\) as much work as A and B together. If C alone can finish the work in 40 days then together all will finish the work in
A.	30 days
B.	\(13\frac{{1}}{3}\) days
C.	15 days
D.	20 days
Answer» C. 15 days

Discussion

743.	Ajay can do a piece of work in 10 days and Harshal can do same work in 12 days. They started working together but Ajay left the work 2 days before completion of work, then time taken to complete the work?
A.	\(6 \frac{6}{11}days\)
B.	\(5 \frac{3}{10}days\)
C.	\(4 \frac{3}{2}days\)
D.	\(7 \frac{2}{5}days\)
Answer» B. \(5 \frac{3}{10}days\)

Discussion

744.	P works twice as fast as Q. Q alone can complete some work in 12 days. Working together,how long will P and Q take to complete the work?
A.	8 days
B.	4 days
C.	6 days
D.	10 days
Answer» C. 6 days

Discussion

745.	P is 4 times faster than Q in doing a job. Q takes 27 more days than P to finish the job. If they work together, in how many days will the work be finished?
A.	\(6 \dfrac{4}{5} \rm \ days\)
B.	\(7 \dfrac{2}{5} \rm \ days\)
C.	\(7 \dfrac{3}{5} \rm \ days\)
D.	\(7 \dfrac{1}{5} \rm \ days\)
Answer» E.

Discussion

746.	A and B together can complete a work in 30 day. They started together but after 6 days A left the work and the work is completed by B after 36 more days. A alone can complete the entire work in how many days?
A.	45
B.	90
C.	60
D.	120
Answer» C. 60

Discussion

747.	A and B can complete a work in 40 days, B and C in 60 days and A and C in 48 days. Who is the most efficient worker among A, B and C?
A.	A
B.	B
C.	C
D.	Cannot be determined
Answer» B. B

Discussion

748.	A can finish a piece of work in 18 days and B can do the same work in half of the time taken by A. Then working together what part of the same work they can finish in a day.
A.	\(\dfrac{1}{6}\)
B.	\(\dfrac{2}{5}\)
C.	\(\dfrac{1}{9}\)
D.	\(\dfrac{2}{7}\)
Answer» B. \(\dfrac{2}{5}\)

Discussion

749.	A, B and C work together. The ratio of the work done by A and B together and the work done by C is 11 : 3, and the ratio of work done by B and C together and work done by A is 1: 1. Which of the three workers is the most skilful?
A.	They all do the equal work.
B.	A
C.	C
D.	B
Answer» C. C

Discussion

750.	L alone can complete a work in 200 hours. M alone can complete the same work in 150 hours. L, M and N together can complete the same work in 60 hours. In how many hours can N alone complete the work?
A.	200
B.	240
C.	180
D.	120
Answer» B. 240

Discussion

Explore topic-wise MCQs in General Aptitude.

If A and B together do a job in 7.5 days and if A could do the job in 10 days if he worked alone. How many days would B take to do the job if he worked alone?

A tank can be filled in 9 hours. Because of a leak, it takes 10 hours to fill. In how much time will the leak alone empty the full tank?

P and R can do a piece of work in 30 days, P and Q can do it in 45 days while Q and R can finish it in 60 days. In how many days can R alone finish the work?

200 bulbs are used 4 hours per day and expenditure of 6 days is Rs. 40. Then how many bulbs should be used 3 hours per day so that expenditure of 15 days is Rs. 48 ?

P can complete a work in 15 days and Q in 24 days. They began the work together but Q left the work 2 days before its completion. In how many days was the work completed?

Pipe A fills a tank at 50 m3/hour. Pipe B takes 4 hours to fill the tank. When opened together, they fill the tank in 2 hours. What is the volume of the tank?

M, N and P undertook a work for Rs. 50000. Together M and N complete (7/10)th part of the work. What is the share (in Rs) of P?

A can do a piece of work in 48 days. If B is 50% more efficient than A, then in how many days can B do the same work?

P and Q together can complete a work in 105 days. Q and R together can complete the same work in 90 days, P and R together can complete the same work in 126 days. In how many days P, Q and R together can complete the same work?

If P, Q and R can complete a job in 24, 16 and 12 days respectively, how long will they take to complete the job working together?

Rakesh and Birjesh together can complete a work in 15 days. Rakesh alone can complete the same work in 30 days. If Birjesh does the work for only half a day daily; then in how many days will Rakesh and Birjesh together complete the work?

4 men and 5 women can complete a work in 15 days, whereas 9 men and 6 women can do it in 10 days. To complete the same work in 7 days, how many women should assist 4 men?

A does a work in 12 days and B does the same work in 16 days. In how many days they will do the same work, working together?

Pipes A and B can fill a tank in 36 hours and 48 hours, respectively. Both pipes are opened together for 9 hours and then A is closed. Pipe B alone will fill the remaining part of the tank now in :

If 12 men or 18 women can complete the harvesting of a field in 14 days, then in how many days can 8 men and 16 women complete the harvesting of the same farm, working at the same speed?

P and Q can do a work in 8 days. Q and R can do the same work in 12 days. P, Q and R together can complete it in 6 days. P and R together can do it in how many days?

Pipes A and B can fill a tank in 16 hours and 24 hours respectively whereas pipe C can empty the full tank in 40 hours. All three pipes are opened together, but pipe A is closed after 8 hours. After how many hours, the remaining part of tank will be filled?

A and B can do a piece of work in 18 days; B and C can do it in 24 days; A and C can do it in 36 days. In how many days will A, B and C finish it, working together?

A tire has 3 punctures. The first puncture alone could expel the air of that tire in 7 minutes, second alone in 14 minutes and third alone in 28 minutes. If the air exits at a constant rate, then how much time (in minutes) will it take for all the punctures to expel the entire air from the tire?

A and B can complete a task in 1.5 days. However, A had to leave a few days before the task was completed and hence it took 2 days in all to complete the task. If A alone could complete the work in 2.625 days, how many days before the work getting over did A leave?

6 men can plough 6 acres of field in 6 days. Then how many days will one man take to plough 1 acre of field?

P works twice as fast as Q. If Q can complete a task in 36 days independently, the number of days in which P and Q can together complete the task in:

A and C together can complete a work in 120 days, C and E together can complete the same work in 80 days and A and E together can complete the same work in 160 days. In how many days A, C and E together can complete the same work?

Joe can complete ¼ of a task in 10 days while jack complete the whole work in 45/2 days. How long will Joe and Jack take to complete the task working together?

A, B and C can complete a work in 20, 12 and 8 days respectively. In how many days A and B together can complete that work?

A field can be reaped by 12 men or 18 women in 14 days. In how many days can 8 men and 16 women reap it?

A and B together can do a certain work in x days. Working alone, A and B can do the same work in (x + 8) and (x + 18) days, respectively. A and B together will complete 5/6 of the same work in:

A, B and C can do a piece of work in 36, 54 and 72 days respectively. They started the work, but A left 8 days before the completion of the work while B left 12 days before the completion. The number of days for which C worked is

3/4 part of a tank is filled with oil. After taking out 60 litres of oil the tank is 2/3 part full. What is the capacity (in litres) of the tank?

A and B can complete a piece of work in 30 days and 80 days, respectively, and were paid Rs. 480 collectively for the complete work. However, they take the assistance of C and complete the work in 20 days. Find the share of C.

A and B together take 6 days to complete a task, B and C together take 15 days, and A, B and C take 5 days. Working together, how much time will A and C take to complete that task?

A can do a piece of work in 9 days and B in 18 days. They began the work together but 3 days before the completion of work A leaves. The time taken to complete the work is:

A and B undertake to do a work for Rs. 6,000. A alone and B alone can do that work in 6 and 8 days respectively. With the help of C, they have finished the work in 3 days. The share of B's is:

A can do a work in 15 days and B in 20 days. Both of them work for 5 days, then the remaining work is:

A can do a piece of work alone in 10 days, whereas B alone can do it in 15 days. They work together and get Rs. 2000 for their work. What is the share of B?

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

If 15 men can do a piece of work in 14 days, how many men will be needed to do the work in 30 days?

Nikhil is thrice as efficient as Kanak and can finish an assignment in 6 days less than Kanak. How many days Kanak will take to finish the same assignment?

Both A and B taps fill a bucket in 12 minutes and 15 minutes respectively. How long will it take to fill the bucket if both taps are opened simultaneously?

36 men can build a wall 140 m long in 21 days, in how many days would 15 men be able to construct a similar wall 50 m long?

A can complete a piece of work in 6 days while B can complete the same work in 12 days. If they work together and complete it then, the portion of the work done by A is:

A does \(\frac{1}{2}\) as much work as B and C does \(\frac{1}{2}\) as much work as A and B together. If C alone can finish the work in 40 days then together all will finish the work in

Ajay can do a piece of work in 10 days and Harshal can do same work in 12 days. They started working together but Ajay left the work 2 days before completion of work, then time taken to complete the work?

P works twice as fast as Q. Q alone can complete some work in 12 days. Working together,how long will P and Q take to complete the work?

P is 4 times faster than Q in doing a job. Q takes 27 more days than P to finish the job. If they work together, in how many days will the work be finished?

A and B together can complete a work in 30 day. They started together but after 6 days A left the work and the work is completed by B after 36 more days. A alone can complete the entire work in how many days?

A and B can complete a work in 40 days, B and C in 60 days and A and C in 48 days. Who is the most efficient worker among A, B and C?

A can finish a piece of work in 18 days and B can do the same work in half of the time taken by A. Then working together what part of the same work they can finish in a day.

A, B and C work together. The ratio of the work done by A and B together and the work done by C is 11 : 3, and the ratio of work done by B and C together and work done by A is 1: 1. Which of the three workers is the most skilful?

L alone can complete a work in 200 hours. M alone can complete the same work in 150 hours. L, M and N together can complete the same work in 60 hours. In how many hours can N alone complete the work?