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A and B together can complete a piece of work in 6 days, and A alone can do it in 10 days. They start together, but A leaves after 2 days.…

1247Medium DSSSB TGT Computer Science 0 replies 1 views

A and B together can complete a piece of work in 6 days, and A alone can do it in 10 days. They start together, but A leaves after 2 days. In how many more days will B finish the remaining work?

Correct answer: B

Explanation

B's one-day work = 1/6 − 1/10 = 1/15; work left after 2 days = 1 − 2/6 = 2/3, so B needs (2/3) × 15 = 10 days.

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