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      Question

      Some equations are solved on the basis of a certain

      system. Find the correct answer for the unsolved equation on that basis. 11 * 7 = 72, 14 * 7 = 147, 17 * 9 = ?
      A 240 Correct Answer Incorrect Answer
      B 175 Correct Answer Incorrect Answer
      C 208 Correct Answer Incorrect Answer
      D 233 Correct Answer Incorrect Answer

      Solution

      β‡’ 11 * 7 = 72 β‡’ 11 – 7 β‡’ 121 – 49 = 72 β‡’ 14 * 7 = 147 β‡’ 14 – 7 β‡’ 196 – 49 = 147 β‡’ 17 * 9 = 17 – 9 β‡’ 289 – 81 = 208 Therefore 17 * 9 = 208

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