1. A man, a woman and a boy together finish a piece of work in 6 days. If a man and a woman can do the work in 10 and 24 days respectively. The days taken by a boy to finish the work is
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By: anil on 05 May 2019 01.55 am
take the lcm of 6,10,24= 120 lets assume total work to be 120 units work done by a man per day = $$frac{120}{10}$$ = 12 work done by a woman per day = $$frac{120}{24}$$ = 5 work done by all three together per day = $$frac{120}{6}$$ = 20 so that means work done by C per day = 20-12-5 = 3 total days needed by the boy to finish the work = $$frac{120}{3}$$ = 40 days
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