Question

A can finish a piece of work in 15 days and B
can do it in 10 days. They worked together for
2 days and then B goes away. In how many
days will A finish the remaining work?​

Answer 1

Answer:

It will take 7.5 days for A complete the remainder of the work. A can do the work in 15 days. B can do the work in 10 days. Together they can do the work in = 1/(1/15 + 1/10) = 30/ ( 2 + 3 )= 6 days.

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