Time and work MCQs with answers pdf for competitive exams. Time and work mcqs pdf download and basic mathematics mcqs with answers pdf for competitive exams.
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. 1 : 3
B. 5 : 3
C. 3 : 4
D. 4 : 3X 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. 15 days
B. 20 days
C. 10 days
D. 6 daysA 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. 22 days
B. 19 days
C. 10 days
D. 15 daysA, 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. 16 days
B. 18 days
C. 12 days
D. 15 daysB 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. 3 days
B. 4 days
C. 32 hours
D. 48 hoursPart of task completed by A in a day = 1/x Part of task completed by B in a day = 3/x (B is thrice as efficient as A) (1/x)+(3/x) = 1 4/x = 1 x = 4 B completes 3/4th of the task in a day. He takes 4/3 days to complete the entire task. 4/3 days = (4/3*24) hours = 32 hours