Question

A can complete 1/3 of a work in 5 days and B 2/5 of the work in 10 days.in how many days both A and B can complete the work?

Answer 1

Given A's work = 1/3 in 5 days = 15 days
Given B's work = 2/5 in 10 days = 25 days

Work completed in 1 day = 1/15 + 1/25 = 8/75

Time taken to complete the total work = 75/8 i.e 9 3/8 days.