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    Question

    How long did it take Narayan to drive to his home?

    Statement I : If he had driven twice as fast she would have taken 30 minutes. Statement II : His average speed was 80 km per hour. Directions(Q.71 -75) : In each of the following questions, a question and two statements I and II are given. You have to decide whether the date given in the statements are sufficient to answer the question or not.
    A If the data in statement I alone is sufficient to answer the question. Correct Answer Incorrect Answer
    B If the data in statement II alone is sufficient to answer the question. Correct Answer Incorrect Answer
    C If the data either in statement I alone or statement II alone are sufficient to answer the question. Correct Answer Incorrect Answer
    D If the data given in both I and II together are not sufficient to answer the question. Correct Answer Incorrect Answer
    E If the data in both the statements I and II together are necessary to answer the question. Correct Answer Incorrect Answer

    Solution

    From statement I , distance/speed = time And if twice speed then distance/(2 × speed) = 30 Solving both equations, we can find time. From statement II, we also require distance to know the time.

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