Question

    P, Q and R together can complete a work in 12 days. All

    of them worked together for 6 days and then P left. How much time will Q and R together will take to complete the remaining work? I. If P completes a work in X number of days, then Q and R together complete the work in X number of days. II. After leaving the work, P completed another work in 10 days. Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer –
    A If the data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question. Correct Answer Incorrect Answer
    B If the data in statement II alone is sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question. Correct Answer Incorrect Answer
    C If the data either in statement I alone or in statement II alone is sufficient to answer the question. Correct Answer Incorrect Answer
    D If the data even in both statements I and II together and not sufficient to answer the question. Correct Answer Incorrect Answer
    E If the data in both statements I and II together are necessary to answer the question. Correct Answer Incorrect Answer

    Solution

    From statement I, it is clear that had P not left the work, the remaining work would have been completed in 6 days. Now since, P’s efficiency is equal to (Q + R)’s efficiency, now the work will completed in 12 days. Statement II is not related to the question.

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