26 + Mcqs in Time & Work in Mathematics Quizzes Page 1 McqOptions

1.	wo pipes X and Y fill a tank in 15 hrs. and 20 hrs. respectively, while a third pipe ‘Z’ can empty the full tank in 25 hrs. All the three pipes are opened in the beginning. After 10 hrs. Z is closed. In how much time, will the tank be full ?
A.	12 hrs
B.	14 hrs
C.	16 hrs
D.	18 hrs
Answer» B. 14 hrs

Discussion

2.	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

3.	Two pipes can fill a tank in 10 hrs. and 12 hrs. respectively while a third pipe empties the full tank in 20 hrs. If all the three pipes operate together , in how much time the tank will be filled ?
A.	7.5 hrs
B.	5 hrs
C.	7 hrs
D.	None of these
Answer» B. 5 hrs

Discussion

4.	P works twice as fast as Q. If Q alone can complete a work in 12 days, P and Q can finish the work in________days
A.	1
B.	2
C.	3
D.	4
Answer» E.

Discussion

5.	P takes twice as much time as Q or thrice as much time as R to finish a piece of work. They can finish the work in 2 days if work together. How much time will Q take to do the work alone?
A.	7
B.	8
C.	9
D.	6
Answer» E.

Discussion

6.	P, Q and R can do a work in 20, 30 and 60 days respectively. How many days does it need to complete the work if P does the work and he is assisted by Q and R on every third day?
A.	10 days
B.	14 days
C.	15 days
D.	9 days
Answer» D. 9 days

Discussion

7.	P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?
A.	8/15
B.	7/15
C.	11/15
D.	2/11
Answer» B. 7/15

Discussion

8.	P can finish a work in 18 days. Q can finish the same work in 15 days. Q worked for 10 days and left the job. how many days does P alone need to finish the remaining work?
A.	8
B.	6
C.	4
D.	2
Answer» C. 4

Discussion

9.	P can do a work in the same time in which Q and R together can do it. If P and Q work together, the work can be completed in 10 days. R alone needs 50 days to complete the same work. then Q alone can do it in__________?
A.	30 days
B.	25 days
C.	20 days
D.	15 days
Answer» C. 20 days

Discussion

10.	P can do a work in 24 days. Q can do the same work in 9 days and R can do the same in 12 days. Q and R start the work and leave after 3 days. P finishes the remaining work in_________days.
A.	10
B.	9
C.	11
D.	12
Answer» B. 9

Discussion

11.	P and Q can complete a work in 15 days and 10 days respectively. They started the work together and then Q left after 2 days. P alone completed the remaining work. The work was finished in__________days.
A.	12
B.	15
C.	22
D.	20
Answer» B. 15

Discussion

12.	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 the same in 12 hours. All the machines started printing at 9 A.M. Machine P is stopped at 11 A.M. and the remaining two machines complete work. Approximately at what time will the printing of one lakh books be completed?
A.	3 pm
B.	2 pm
C.	1:00 pm
D.	11 am
Answer» D. 11 am

Discussion

13.	Farjan and Kashif can complete a task in 30 days. Farjan leaves after 20 days and Kashif alone completes it in another 25 days. How many days does Farjan alone take to complete the entire task?
A.	50
B.	75
C.	60
D.	45
Answer» B. 75

Discussion

14.	Bilal can do a work in 15 days and Jalal in 12 days. If they work on it together for 4 days, the fraction of work that is left is________?
A.	3/5
B.	4/7
C.	2/5
D.	1/4
Answer» D. 1/4

Discussion

15.	A tap can fill a tank in 32 min. and another can empty it in 16 min. If the tank is already half full and both the tanks are opened together, the tank will be_________?
A.	12 min
B.	14 min
C.	16 min
D.	20 min
Answer» D. 20 min

Discussion

16.	A tank can be filled by a pipe in 20 min. and by another pipe in 60 min. Both the pipes are kept open for 10 min. and then the first pipe is shut off. After this, the tank will be completely filled in__________?
A.	10 min
B.	20 min
C.	30 min
D.	40 min
Answer» C. 30 min

Discussion

17.	A completes 80% of a work in 20 days. Then B also joins and A and B together finish the remaining work in 3 days. How long does it need for B if he alone completes the work?
A.	37 ½ days
B.	22 days
C.	31 days
D.	22 days
Answer» B. 22 days

Discussion

18.	A cistern has two taps which fill it in 12 min. and 15 min.respectively There is one outlet pipe in the cistern. When all the taps & pipe are opened, the empty cistern is full in 20 min. How long will the waste pipe (outlet) take to empty the full cistern ?
A.	10 min
B.	20 min
C.	30 min
D.	40 min
Answer» B. 20 min

Discussion

19.	A can do piece of work in 30 days while B can do it in 40 days. In how many days can A and B working together do it ?
A.	70 days
B.	120/7 days
C.	50 days
D.	45 days
Answer» C. 50 days

Discussion

20.	A can do a particular work in 6 days . B can do the same work in 8 days. A and B signed to do it for Rs. 3200. They completed the work in 3 days with the help of C. How much is to be paid to C?
A.	Rs. 380
B.	Rs. 600
C.	Rs. 420
D.	Rs. 400
Answer» E.

Discussion

21.	A can do a certain work-in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in_________?
A.	15 days
B.	20 days
C.	25 days
D.	30 days
Answer» D. 30 days

Discussion

22.	A can do a certain job in 12 days. B is 60% more efficient than A. The number of days it takes for B to do the same piece of work, is:_________?
A.	12/6 days
B.	15/2 days
C.	23 days
D.	34 days
Answer» C. 23 days

Discussion

23.	A and B can together do a piece of work in 15 days. B alone can do it in 20 days. In how many days can A alone do it ?
A.	40 days
B.	50 days
C.	60 days
D.	70 days
Answer» D. 70 days

Discussion

24.	A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job?
A.	48
B.	34(2/7)
C.	44
D.	45
Answer» B. 34(2/7)

Discussion

25.	A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in___________?
A.	8 days
B.	10 days
C.	12 days
D.	15 days
Answer» D. 15 days

Discussion

26.	6 men and 8 women can complete a work in 10 days. 26 men and 48 women can finish the same work in 2 days. 15 men and 20 women can do the same work in_______days.
A.	4 days
B.	6 days
C.	2 days
D.	8 days
Answer» B. 6 days

Discussion

Explore topic-wise MCQs in Mathematics Quizzes.

wo pipes X and Y fill a tank in 15 hrs. and 20 hrs. respectively, while a third pipe ‘Z’ can empty the full tank in 25 hrs. All the three pipes are opened in the beginning. After 10 hrs. Z is closed. In how much time, will the tank be full ?

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 ?

Two pipes can fill a tank in 10 hrs. and 12 hrs. respectively while a third pipe empties the full tank in 20 hrs. If all the three pipes operate together , in how much time the tank will be filled ?

P works twice as fast as Q. If Q alone can complete a work in 12 days, P and Q can finish the work in________days

P takes twice as much time as Q or thrice as much time as R to finish a piece of work. They can finish the work in 2 days if work together. How much time will Q take to do the work alone?

P, Q and R can do a work in 20, 30 and 60 days respectively. How many days does it need to complete the work if P does the work and he is assisted by Q and R on every third day?

P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?

P can finish a work in 18 days. Q can finish the same work in 15 days. Q worked for 10 days and left the job. how many days does P alone need to finish the remaining work?

P can do a work in the same time in which Q and R together can do it. If P and Q work together, the work can be completed in 10 days. R alone needs 50 days to complete the same work. then Q alone can do it in__________?

P can do a work in 24 days. Q can do the same work in 9 days and R can do the same in 12 days. Q and R start the work and leave after 3 days. P finishes the remaining work in_________days.

P and Q can complete a work in 15 days and 10 days respectively. They started the work together and then Q left after 2 days. P alone completed the remaining work. The work was finished in__________days.

Farjan and Kashif can complete a task in 30 days. Farjan leaves after 20 days and Kashif alone completes it in another 25 days. How many days does Farjan alone take to complete the entire task?

Bilal can do a work in 15 days and Jalal in 12 days. If they work on it together for 4 days, the fraction of work that is left is________?

A tap can fill a tank in 32 min. and another can empty it in 16 min. If the tank is already half full and both the tanks are opened together, the tank will be_________?

A tank can be filled by a pipe in 20 min. and by another pipe in 60 min. Both the pipes are kept open for 10 min. and then the first pipe is shut off. After this, the tank will be completely filled in__________?

A completes 80% of a work in 20 days. Then B also joins and A and B together finish the remaining work in 3 days. How long does it need for B if he alone completes the work?

A cistern has two taps which fill it in 12 min. and 15 min.respectively There is one outlet pipe in the cistern. When all the taps & pipe are opened, the empty cistern is full in 20 min. How long will the waste pipe (outlet) take to empty the full cistern ?

A can do piece of work in 30 days while B can do it in 40 days. In how many days can A and B working together do it ?

A can do a particular work in 6 days . B can do the same work in 8 days. A and B signed to do it for Rs. 3200. They completed the work in 3 days with the help of C. How much is to be paid to C?

A can do a certain work-in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in_________?

A can do a certain job in 12 days. B is 60% more efficient than A. The number of days it takes for B to do the same piece of work, is:_________?

A and B can together do a piece of work in 15 days. B alone can do it in 20 days. In how many days can A alone do it ?

A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job?

A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in___________?

6 men and 8 women can complete a work in 10 days. 26 men and 48 women can finish the same work in 2 days. 15 men and 20 women can do the same work in_______days.