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    Question

    A car starts from point A and travels at a speed of 40

    miles per hour. After 1 hour, a second car starts from point A and travels in the same direction at a speed of 60 miles per hour. How long will it take for the second car to catch up to the first car?
    A 3 hrs Correct Answer Incorrect Answer
    B 2 hrs Correct Answer Incorrect Answer
    C 8 hrs Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    ATQ, The first car has a head start of 40 miles (40 miles/hour * 1 hour). The second car is gaining on the first car at a rate of 60 - 40 = 20 miles per hour. Time taken to cover 40 miles at a speed of 20 mph = 40/20 = 2 hours

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