Question 4

Amit and Sunil together can do a work in 6 days. If Amit can do it in 10 days, then in how many days can Sunil do it?

Solution

Sunil's one-day work is $$\frac{1}{6} - \frac{1}{10} = \frac{5 - 3}{30} = \frac{1}{15}$$. So Sunil alone can finish the work in 15 days.

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