Each question has four options. Three of them go together based on a common idea or rule. One is different. Identify the one that is different.
Show answer & explanation
Correct answer: B
Explanation
(22 − 1)/7 = 21/7 = 3
(36 − 1)/7 = 35/7 = 5
(43 − 1)/7 = 42/7 = 6
But,
(28 − 1)/7 = 27/7 ≠ 4
Therefore, 28 - 4 is different from the other three.