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 take to complete the remaining work? Statement I: If P completes a work in X number of days, then Q and R together complete the work in X number of days. Statement II: After leaving the work, P completed another work in 10 days.

Q: Answer-&lt;p&gt;P, Q and R together can complete a work in 12 days. All of them worked together for 6 days...

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, Prsquos efficiency is equal to Q Rrsquos efficiency, now the work will completed in 12 days. Statement II is not related to the question.

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.

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.

C If the data either in statement I alone or in statement II alone is sufficient to answer the question.

D If the data in both statement I and II together are not sufficient to answer the question.

E If the data in both statement I and II together are necessary to answer the question.

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