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      Question

      What value should come in place of (?) question mark in

      the given expression. { (28)Β² βˆ’ (16)Β² } Γ· 12 + 9 = ?
      A 53 Correct Answer Incorrect Answer
      B 44 Correct Answer Incorrect Answer
      C 84 Correct Answer Incorrect Answer
      D 70 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      (28)Β² βˆ’ (16)Β² = (28 βˆ’ 16)(28 + 16) = 12 Γ— 44 = 528 528 Γ· 12 = 44 Expression = 44 + 9 = 53

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