A. 50 days
B. 60 days
C. 70 days
D. 80 days
Time and Work MCQs
If 10 men complete a work in 20 days, how long will it take 8 men to do the job if they work at the same rate?
A. 16 days
B. 18 days
C. 20 days
D. 25 days
If 4 men or 6 boys can finish a work in 20 days. 6 men and 11 boys will finish the same work in ______.
A. 2 days
B. 3 days
C. 5 days
D. 6 days
A and B can do a piece of work in 4 days. If A can do it alone in 12 days, B will finish the work in ______.
A. 4 days
B. 6 days
C. 8 days
D. 10 days
A works twice as fast as B. If B can complete a work in 12 days independently. The number of days in which A and B can together finish the work will be ______.
A. 4 days
B. 6 days
C. 8 days
D. 10 days
Explanation
If B takes 12 days to finish the work, then A takes 6 days to finish the same work.
If A can complete a work in x days and B can complete the same work in y days, then, both of them together can complete the work in x y/ x+ y days.
Therefore, the number of days taken by A and B together to finish the same work will be:
= 6 × 12/18= 4 days.
If 39 men repair a road in 12 days working 5 hours a day, 30 men working 6 hours per day will complete the work in ______.
A. 8 days
B. 11 days
C. 13 days
D. 17 days
If 8 men can dig a well in 18 days, the number of days, 12 men will take to dig the same well will be ______.
A. 12 days
B. 14 days
C. 16 days
D. 18 days
If 12 men can do a piece of work in 24 days, 18 men can do the same work in ______.
A. 10
B. 12
C. 14
D. 16
A can do a piece of work in 5 days and B can do the same work in 10 days. They both will complete the work in ______.
A. 10/3 days
B. 5 days
C. 13/2 days
D. 8 days
If 16 men or 20 women finish a work in 25 days, the same job can be finished by 28 men and 15 women in ______.
A. 5.5 days
B. 7.75 days
C. 9 days
D. 10 days
A and B together can plough a field in 10 hours, but by himself A requires 15 hours. B alone will plough the same field in ______.
A. 30 hours
B. 40 hours
C. 50 hours
D. 55 hours
If 5 girls can embroider a dress in 9 days, the number of days taken by 3 girls to do the same will be ______.
A. 12 days
B. 15 days
C. 18 days
D. 20 days
Five people undertook a piece of construction work and finished half the job in 15 days. If two people drop out, then the job will be completed in ______.
A. 10 days
B. 15 days
C. 20 days
D. 25 days
Shaista completes a piece of work in 10 days, Ali completes the same work in 40 days. If they work together, the days required to complete the work will be ______.
A. 6 days
B. 8 days
C. 12 days
D. 16 days
If 3 persons do 3 times of a particular work in 3 days, then 7 persons can do 7 times of that work in ______.
A. 3 days
B. 5 days
C. 6 days
D. 7 days
If 4 men can colour 48m cloth in 2 days, 6 men can colour 36 m cloth in ______.
A. 3/4 day
B. 1 day
C. 1.5 days
D. 2 days
A completes a work in 12 days whereas B completes the same work in 24 days. If both A and B work together, the work will be completed in ______.
A. 6 days
B. 8 days
C. 10 days
D. 12 days