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

    Question

    How can 420 mobile phones be shared equally in the

    students present in the classroom?
    A 20 Correct Answer Incorrect Answer
    B 24 Correct Answer Incorrect Answer
    C 28 Correct Answer Incorrect Answer
    D 22 Correct Answer Incorrect Answer

    Solution

    420 = 2 x 2×3×5×7 420 = 22 x 31 x51× 71 The required number of ways = (2 + 1) x (1 + 1) x (1+1)×(1+1)  = 3 x 2 x 2×2 = 24

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