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In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Select the set in which the numbers are related in the same way: 12, 72 15, 90
11, 66
14, 80
16, 92
18, 100
11, 66
The second number is obtained by multiplying the first number by 6 (or the first number multiplied by half of itself).
The second number is obtained by multiplying the first number by 6 (or the first number multiplied by half of itself).
Analyze the pattern
Given pairs: 12, 72 and 15, 90. Logic: 12 * 6 = 72; 15 * 6 = 90. The pattern is First Number * 6 = Second Number.
Evaluate the options
Applying the pattern First * 6 to the options: Option A: 11 * 6 = 66 (Matches); Option B: 14 * 6 = 84 (Does not match 80); Option C: 16 * 6 = 96 (Does not match 92); Option D: 18 * 6 = 108 (Does not match 100).
B: 14 * 6 equals 84, not 80. C: 16 * 6 equals 96, not 92. D: 18 * 6 equals 108, not 100.
A is correct because the logic applied to the original set is multiplying the first number by 6, which is uniquely satisfied by the pair 11 and 66.
When faced with number analogies, always check for direct multiplication, squares, and cubes first as they account for 80 percent of exam questions.