Aptitude

A can do a work in 10 days, B in 15 days. Find the time taken together.

A finishes a work in 12 days. B is twice as efficient as A. Find B's time.

A and B together do a work in 6 days; A alone in 10 days. Find B's time alone.

A finishes a work in 20 days, B in 25 days. They work together for 5 days. Find the fraction of work left.

A, B, C complete a job in 10, 15, 30 days respectively. Find the time taken together.

A can do a work in 8 days, and with B's help in 5 days. Find B's time alone.

15 men complete a work in 20 days. How many men are needed to finish it in 12 days?

If 6 workers build a wall in 8 days, how many days will 4 workers take?

A completes work in 18 days, B in 24 days. They start together, but A leaves 4 days before completion. Find total days.

A does 1/3 of a work in 5 days. Find the time to complete the whole work.

A and B do a work in 12 days, B and C in 15 days, A and C in 20 days. Find the time for all three together.

10 women complete a work in 8 days; 10 children take 12 days for the same work. Find the days for 5 women + 5 children together.

A is thrice as good as B. A takes 10 days less than B. Find B's time.

12 men or 15 women can do a work in 20 days. How long will 6 men and 5 women take?

A completes a work in 15 days working 8 hours/day. How many days at 6 hours/day?

A and B together finish a work in 8 days; A alone in 12 days. Find the fraction B does in 2 days.

20 men complete a work in 15 days. After 5 days, 5 more join. Find the total time.

A does a work in 9 days; B is 50% more efficient. Find B's time.

Worker A (6 days) and worker B (9 days) work on alternate days starting with A. Find the total days to finish.

A, B, C earn Rs 1800 for a job; A worked 6 days, B 4 days, C 9 days, equal daily rate. Find B's share.

A completes a work in 25 days; works 5 days then leaves. B finishes the remaining in 30 days. Find B's time to do the whole work alone.

8 men complete a work in 10 days; 8 women in 20 days. Find the time for 4 men + 4 women together.

A completes work in 20 days; B is twice as efficient. Working on alternate days starting with A, find total time.

3 men or 4 women build a wall in 43 days. Find the time for 7 men and 5 women.

A finishes work in 15 days, B in 10 days. Working together, they earn Rs 5000; find A's share.