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      Question

      The difference between the squares of two numbers is

      184, and their sum is 46. What is the larger number?
      A 28 Correct Answer Incorrect Answer
      B 25 Correct Answer Incorrect Answer
      C 18 Correct Answer Incorrect Answer
      D 21 Correct Answer Incorrect Answer

      Solution

      Let the numbers be 'a' and 'b' such that (a > b)
      a + b = 46 --------- (I)
      And, a2 - b2 = 184
      Or, (a + b) (a - b) = 184
      Or, 46 X (a - b) = 184
      Or, a - b = 4 -------- (II)
      On adding equation I and II,
      We get, a + b + a - b = 46 + 4
      Or, 2a = 50
      Or, 'a' = 25

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