Ehsaan is twice as good a worker as Kamal and together they finish a piece of work in 29 days. In how many days will Kamal, working alone, finish the work?
Let the time taken by ehsaan = x days time taken by kamal = 2x days therefore, 1/x + 1/2x = 1/29 (2 + 1)/2x = 1/29 x = 43.5 days Hence, kamal will take 2 x 43.5 = 87 days
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Statement I: The ratio of efficiency of boy to girl is 3:1
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