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    Question

    A cyclist travels

    data-end="1559">30% of the total route at the speed of 8 km/hr in ‘x’ hours . If the entire route was covered at an average speed of 10 km/hr , the time taken would have been (x + 4) hours . What is the value of ‘x’?
    A 1.5 hrs Correct Answer Incorrect Answer
    B 2.4 hrs Correct Answer Incorrect Answer
    C 5.5 hrs Correct Answer Incorrect Answer
    D 9.5 hrs Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    (8 × x)/0.3 = 10(x + 4) 8x = (10x + 40) × 0.3 8x = 3x + 12 5x = 12, x = 12 / 5 = 2.4 So, the value of ‘x’ is 2.4 hours.

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