Question
Select the option in which the numbers are not related
in the same way as are the number of the following set. (12, 15, 90)Solution
The logic followed here is as follows: Multiplication of first and second number is divided by 2 to get the third number. In (12, 15, 90) → 12 X 15 = 180; 180 ÷ 2 = 90 In option (a): (6, 18, 54) → 6 X 18 = 107; 108 ÷ 2 = 54 In option (b): (18, 9, 81) → 18 X 9 = 162; 162 ÷ 2 = 81 In option (c): (21, 10, 105) → 21 X 10 = 210; 210 ÷ 2 = 105 In option (d): (17, 12, 100) → 17 X 12 = 204; 204 ÷ 2 = 102.
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