The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number pairs except one. Find that odd number pair.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 18: 42.
The logic used here is: 1st number × 2 + 4 = 2nd number
Option 1: 18: 42 18 × 2 + 4 = 36 + 4 = 40 This does not follow the logic.