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    Question

    Speed of a car and a bus is 20 km/h and 10 km/h,

    respectively. If the time taken by the car to cover a distance of тАШ8xтАЩ km is 1 hour less than time taken by the bus to cover a distance of тАШ5xтАЩ km, then find the value of тАШ8xтАЩ
    A 70 Correct Answer Incorrect Answer
    B 80 Correct Answer Incorrect Answer
    C 75 Correct Answer Incorrect Answer
    D 60 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    According to the question, (5x/10) тАУ (8x/20) = 1 Or, (5x ├Ч 2 тАУ 8x ├Ч 1) ├╖ 20 = 1 Or, (10x тАУ 8x) ├╖ 20 = 1 So, x = 10 Required value = 8 ├Ч 10 = 80

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