Question

a can do a piece of work in 12 days and b can do it in 10 days both will do in how many days

Answer 1

one day work of A = 1/12
one day work of B = 1/10
work completed by both of them working together = 1/12 + 1/10 = 11/60
therefore total work is completed in = 60/11 days



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