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      Question

      Four number-pairs are given, out of which three are

      alike in a certain manner and one is different. Choose the different number-pair.
      A 164 : 256 Correct Answer Incorrect Answer
      B 325 : 625 Correct Answer Incorrect Answer
      C 152 : 32 Correct Answer Incorrect Answer
      D 241 : 10 Correct Answer Incorrect Answer

      Solution

      The pattern followed here is: The sum of all digits of the first number is multiplied by the square of the last digit of the first number. Option (a) 164 : 256 β†’ (1 + 6 + 4) Γ— (4)Β² = (11 Γ— 16) = 176 Option (b) 325 : 625 β†’ (3 + 2 + 5) Γ— (5)Β² = (10 Γ— 25) = 250 Option (c) 152 : 32 β†’ (1 + 5 + 2) Γ— (2)Β² = (8 Γ— 4) = 32 Option (d) 241 : 10 β†’ (2 + 4 + 1) Γ— (1)Β² = (7 Γ— 1) = 7

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