Question

P’s 2 days work is equal to Q’s 3 days work. If P and Q together can complete the work in 30 days then how much time Q will take to complete 60% of the work?

A 56 days Correct Answer Incorrect Answer
B 45 days Correct Answer Incorrect Answer
C 65 days Correct Answer Incorrect Answer
D 60 days Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

Ratio of efficiency of P and Q = 3:2 Let the efficiency of P and Q be 3x and 2x units per day respectively. Total work = 5x × 30 = 150x units Required time = (0.60 × 150x)/2x = 45 days

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