Important Time and Work MCQs with Answers for all classes exams and Mathematics test preparation online.
Time and Work MCQs
A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in ___?
A. 4 days
B. 6 days
C. 8 days
D. 12 days
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
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
A and B can do a piece of work in 72 days; B and C can do it in 120 days; A and C can do it in 90 days. In what time can A alone do it ?
A. 80 days
B. 100 days
C. 120 days
D. 150 days
Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman ?
A. 3 : 4
B. 4 : 3
C. 5 : 3
D. Data inadequate
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
A and B together can complete a work in 1.2 days,. A alone can complete it in 20 days. If B does the work only for half a day daily, then in how many days A and B together will complete the work ?
A. 10 days
B. 11 days
C. 15 days
D. 20 days
A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every Third day ?
A. 12 days
B. 15 days
C. 16 days
D. 18 days
A and B together take 6 days to complete a task. B and C together take 12 days to complete the same task. A and C together take 8 days to complete it. If A, B and C are working together, how long does it take for them to complete the task?
A. 4(2/3) days
B. 4 days
C. 5(1/3) days
D. 1(1/3) days
B can work 3 times faster than A. They work together on a task and complete it in a day. How long does it take for B alone to complete the task?
A. 32 hours
B. 48 hours
C. 3 days
D. 4 days
