Question

    A boy goes to school at 5 km/Hr and return at a speed of

    4 km/hr. If he takes 9 hrs in all. Find the distance from his village to school?
    A 9 km Correct Answer Incorrect Answer
    B 20 km Correct Answer Incorrect Answer
    C 5 km Correct Answer Incorrect Answer
    D 36 km Correct Answer Incorrect Answer
    E 45 km Correct Answer Incorrect Answer

    Solution

    Let the distance from village to school be D km According to the question, ⇒ D/5 + D/4 = 9 ⇒ 9D/20 = 9 ⇒ D = 20 km

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