Three of the following number pairs are alike in some manner and one is different, Select the odd number pair.
(NOTE: The second number in the given number pairs is formed by performing a certain operation on the first number. The same operation is followed in all the number pairs except one. Find the odd number pair.)
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 80 : 13.
The logic used here is: 2nd number × 5 + 5 = 1st number
Option 1: 55: 10 = 10 × 5 + 5 = 50 + 5 = 55: This follows the logic.
Option 2: 80: 13 = 13 × 5 + 5 = 65 + 5 = 70: This does not follow the logic.