Question

    A car was moving at a speed of 50 km/hr for ‘x’ hours.

    Later, its speed increased by 10 km/hr and it continued to travel for (x + 5) hours more. If the distance covered in the second part of the journey is 660 km, then what distance did the car travel in the first ‘x’ hours?
    A 252 km Correct Answer Incorrect Answer
    B 300 km Correct Answer Incorrect Answer
    C 370 km Correct Answer Incorrect Answer
    D 450 km Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    60 × (x + 5) = 660

    Or, x + 5 = 11

    Or, x = 6

    Therefore, required distance travelled = 50 × 6 = 300 km

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