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    Question

    Alex and John can finish a translation project alone in

    ‘p’ and ‘q’ days, respectively. The time taken by Alex to complete the project is 50% of the time taken by John. The ratio of efficiency of Alex to that of John is:
    A 2:1 Correct Answer Incorrect Answer
    B 1:5 Correct Answer Incorrect Answer
    C 5:4 Correct Answer Incorrect Answer
    D 2:3 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Efficiency of Alex = (1/p) units/day And, efficiency of John = (1/q) units/day According to the question; p = 50% of q = (1/2) × q Or, p/q = 1/2 Required ratio = (1/p) / (1/q) = (q/p) = 2:1

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