Question

Ravi
can do a piece of work in 15 days. His friend Rajat can do the same work in 10 days. They start
the work together but after two days, Rajat gives up the work. In how many days will Ravi finishes

the
remaining work?​

Answer 1

Answer:

10 days according to me.

Explanation:

If my answer is correct, check the explanation.

Ravi does 1/15 of the work in a single day.

Rajat does 1/10 of the work in a single day.

As they both worked together for 2 days. They must've completed 2×1/15 + 2×1/10 = 2/15 + 2/10 = 1/3rd of the work.

Now Ravi has to do the remaining work i. e. 2/3rd alone. As he does 1/15th work in a single day, he'll take 2/3 × 15 = 10 days to complete the work.