1.

Q: A alone can complete a work in 15 days and B alone can complete a work in 25 days. If they work on alternate days starting with A, in how many days the work will be finished?

A. 16 days
B. 22 days
C. $$17{1\over 2} $$ days
D. $$18{3\over 5} $$ days
Answer» E.


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