Three of the following four are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group?
(1) 39 - 75
(2) 43 - 82
(3) 55 - 107
(4) 64 - 125
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 2.
Logic Used: ((First Number + 1) × 2) - 5
Except For Option 2 ⇒ 43 - 82
= ((43 + 1) × 2) - 5
= (44 × 2) - 5 = 88 - 5 = 83
Thus, 43 - 82 is the odd one out.