Question
Select the option that is related to the third number in
the same way as the second number is related to the first number and the sixth number is related to the fifth number. 67 : 871:: 54 : ? :: 72 : 648Solution
The logic followed here is: First number × (sum of the digits of the first number) = Second number. For the pair 67 : 871 → 67 × (6 + 7) = 67 × 13 = 871 For the pair 72 : 648 → 72 × (7 + 2) = 72 × 9 = 648 Now, for 54:? → 54 × (5 + 4) = 54 × 9 = 486
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