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    Question

    Speed of a car and a bus is 30 km/h and 6 km/h,

    respectively. If the time taken by the car to cover a distance of β€˜10x’ km is 2 hour less than time taken by the bus to cover a distance of β€˜5x’ km, then find the value of β€˜10x’
    A 45 Correct Answer Incorrect Answer
    B 42 Correct Answer Incorrect Answer
    C 40 Correct Answer Incorrect Answer
    D 43 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    According to the question, (5x/6) – (10x/30) = 2 Or, (5x Γ— 5 – 10x Γ— 1) Γ· 30 = 2 Or, (25x – 10x) Γ· 30 = 2 So, x = 4 Required value = 10 Γ— 4 = 40

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