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The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number pairs, EXCEPT one. Find that odd number pair.
(15, 240)
(13, 180)
(11, 132)
(16, 212)
- To find the outlier, observe the relationship between the numbers in each pair.
- Option 1: (15, 240)
- Multiply the first number by 12, then subtract 30.
- (15 × 12) - 30 = 180, not 240.
- Option 2: (13, 180)
- Multiply the first number by 12, then subtract 18.
- (13 × 12) - 18 = 138, not 180.
- Option 3: (11, 132)
- Multiply the first number by 12, then subtract 0.
- (11 × 12) - 0 = 132, correct.
- Option 4: (16, 212)
- Multiply the first number by 12, then subtract 70.
- (16 × 12) - 70 = 122, not 212.
The correct outlier is Option 1: (15, 240), because the operation doesn't hold in the same way as others.
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