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      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 2ร—3ร—5ร—7 420 = 22 x 31 x51ร— 71 The required number of ways = (2 + 1) x (1 + 1) x (1+1)ร—(1+1) ย = 3 x 2 x 2ร—2 = 24

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