The correct answer is D
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P’s 5 days work is equal to Q’s 7 days work. If P and Q together can complete the work in 20 days then how much time Q will take to complete 75% of ...
A and B together can complete a piece of work in 25 days while A alone can complete 50% of the work in 50 days. Find the time taken by B to compl...
'P' and 'Q' can finish a piece of work in 45 days and 90 days, respectively. 'P' starts working alone, and 'Q' joins after 'r' da...
