1.

(A + B) together can do a piece of work in 12 days. While (B + C) together can do a piece of work in 15 days. (C + A) together can do a piece of work in 20 days. In how many days will this work be completed by(A + B + C) together ?

Answer»


ANSWER :`(A+B+C) to 10` DAYS


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