Question Bank: Time & Work

A can complete a work in 10 days and B can complete the same work in 15 days. How many days will it take for A and B to complete the work together?

a) 6 days
b) 5 days
c) 8 days
d) 7 days
A can do a piece of work in 12 days, and B can do the same work in 16 days. If they work together, how much time will they take to complete the work?

a) 6.85 days
b) 7.2 days
c) 7.5 days
d) 7.85 days
A and B together can do a work in 8 days, and B alone can do it in 12 days. How many days will A alone take to complete the work?

a) 20 days
b) 24 days
c) 18 days
d) 30 days
If 12 men can complete a work in 15 days, how many men are required to complete the work in 10 days?

a) 18
b) 15
c) 12
d) 20
A does half as much work as B in one-third of the time. If together they take 18 days to complete a work, how much time will B alone take to complete the work?

a) 30 days
b) 36 days
c) 48 days
d) 54 days
A can complete a piece of work in 40 days and B can do it in 30 days. They work together for 8 days, then A leaves. How many more days will B take to complete the work?

a) 11 days
b) 13 days
c) 15 days
d) 12 days
If A, B, and C can complete a work in 10 days, 12 days, and 15 days respectively, how long will it take for all three to complete the work together?

a) 4 days
b) 3.5 days
c) 5 days
d) 6 days
A and B can do a work in 45 days and 40 days respectively. They worked together for 10 days, and then A left. In how many days will B finish the remaining work?

a) 20 days
b) 22 days
c) 25 days
d) 30 days
A can do a work in 15 days and B in 20 days. They start the work together but B leaves after 6 days. How many more days will A take to finish the work?

a) 5 days
b) 7 days
c) 8 days
d) 6 days
If 10 men can finish a work in 15 days, how long will 15 men take to finish the same work?

a) 10 days
b) 12 days
c) 8 days
d) 7 days
A can complete a work in 6 days and B can complete it in 8 days. They work together for 3 days, and the remaining work is done by C in 4 days. How long will C take to complete the entire work alone?

a) 12 days
b) 16 days
c) 24 days
d) 18 days
A works twice as fast as B. If both together can complete a work in 18 days, in how many days can A complete the work alone?

a) 24 days
b) 36 days
c) 27 days
d) 30 days
A can do a work in 10 days and B in 15 days. They work together for 5 days, then B leaves. In how many more days will A finish the work?

a) 3 days
b) 4 days
c) 2 days
d) 5 days
If 8 men can finish a work in 12 days, how many men will be needed to finish the work in 6 days?

a) 16
b) 12
c) 10
d) 14
A can do a piece of work in 30 days, B in 24 days, and C in 20 days. They start working together, but C leaves after 6 days. In how many more days will A and B finish the remaining work?

a) 8 days
b) 10 days
c) 7 days
d) 9 days