A can finish a work in 18 days and B can do the same work in half the time taken by A. Then, working together, what part of the same work they can finish in a day ?

A can finish a work in 18 days and B can do the same work in half the time taken by A. Then, working together, what part of the same work they can finish in a day ? Correct Answer 1/6

Hints: Given that B alone can complete the same work in day = half the time taken by A = 9 days A's One day's work = 1/18 B's One days work = 1/9 (A + B)'s one days work = 1/18 + 1/9 = 1/6
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