Question

    At what time will a train reach city P from city Q?

    I. The 600 meter long train crosses a signal pole in 20 seconds. II. The another train crosses a 400 m long platform in 30 secs. III. The train leaves city P at 10:00 am for city Q situated at a distance of 1,620 km. Each of the questions below consists of a question and three statements numbered I, II and III given below it. You have to decide whether the data provided in all the three statements are sufficient to answer the question. Read all the statements and give answer –
    A I and II together or only III alone Correct Answer Incorrect Answer
    B Only I and III Correct Answer Incorrect Answer
    C Only I and II Correct Answer Incorrect Answer
    D All I, II and III Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    From I and III, Speed of the train = 600/20×  18/5 = 108 km/hr. Time = 1620/108 = 15 hrs. Arrival time = 10 am + 15 hrs = 1 am. Statements II and III together is sufficient to answer the question.

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