Instructions

Each of the questions given 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 is sufficient to answer the question. Read both the statements.
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.
Give 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.
Give answer c: if the data in statement I alone or in statement II alone is sufficientto answer the question.
Give answer d: if the data in both the statements I and II is not sufficient to answer the question.
Give answer e: if the data in both the statements I and II together is necessary to answer the question.

Question 113

At what time did Poonam finish the job ?
I. Poonam started working without a break on the job at exactly 9 a.m. and by noon she had utilised exactly half the time that it took her to finish the job.
II. Poonam took exactly 6 hours to finish the job.

Solution

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I : Poonam started the work at 9 a.m.

She completed half the work in = 12 - 9 = 3 hours

Time required to complete whole work = 3 * 2 = 6 hours

=> Poonam finished the work at = 3 p.m.

Thus, I alone is sufficient.

II : Time taken to complete the job = 6 hours

But, we do not know the starting time, thus we cannot find at what time Poonam finished the work.

Thus, II alone is insufficient.

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