Multiple Choice Questions on Sumit covers a distance in 30 minutes if he drives at a speed of 50 km h on an average Find the spee........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Sumit covers a distance in 30 minutes if he drives at a speed of 50 km h on an average Find the spee...........

Quant (SSC) Time & distance
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    Sumit covers a distance in 30 minutes if he drives at a speed of 50 km/h on an average. Find the speed at which he must drive at to increase the time of the journey by 25%?

    50 km/h

    Incorrect Answer

    35 km/h

    Incorrect Answer

    40 km/h

    Correct Answer

    20 km/h

    Incorrect Answer
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    Explanation:

    D = S × T
    D = 50 × 30 /60
    D = 25 km Now new time = 30 × 125%
    = 37.5 minutes D = S × T
    25 = S x 37.5 /60
    S = 40 km/h

    By: Amit Kumar
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