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    Question

    A truck initially moving at 45

    km/hr increased its speed by 9 km/hr after ‘w’ hours and continued for (w + 10) hours more. If the truck covered 702 km in the last (w + 10) hours, find the distance covered in the first ‘w’ hours.
    A 240 km Correct Answer Incorrect Answer
    B 200 km Correct Answer Incorrect Answer
    C 275 km Correct Answer Incorrect Answer
    D 250 km Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, (45 + 9) × (w + 10) = 702 Or, 54 × (w + 10) = 702 Or, w + 10 = 13 Or, w = 3 Therefore, required distance traveled = 45 × 3 = 135 km

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