1.

When P alone does a work, he takes 25 days more than the time taken by P and Q working together to complete the work. But Q alone takes 9 days more than the time taken by P and Q working together to complete the work. In what time, P and Q together finish this work?

A. 18 days
B. 20 days
C. 25 days
D. 15 days
Answer» E.


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