New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    A boy goes to school at 4 km/Hr and return at a speed of

    3 km/hr. If he takes 7 hrs in all. Find the distance from his village to school?
    A 12 km Correct Answer Incorrect Answer
    B 28 km Correct Answer Incorrect Answer
    C 7 km Correct Answer Incorrect Answer
    D 21 km Correct Answer Incorrect Answer
    E 14 km Correct Answer Incorrect Answer

    Solution

    Let the distance from village to school be D km According to the question, ⇒ D/4 + D/3 = 7 ⇒ 7D/12 = 7 ⇒ D = 12 km

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