Study the given pattern carefully and select the number that can replace the question mark (?) in it.
4 (15) 1 : 7 (22) 3 : ? (57) 4
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e 11.
The logic used here is:
(Left number)2 - (Right number)3 = Middle number
42 - 13 = 15
72 - 33 = 22
Similarly,
x2 - 43 = 57
⇒ x = 11
Hence, option 2 is the correct answer.