If you subtract the square of a number from 4052 and then multiply the result by 15, you get 41340. What is that number?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 36.
Let number = n
(4052 – n2) × 15 = 41340
⇒ 4052 – n2 = 41340/15 = 2756
⇒ n2 = 4052 – 2756 = 1296
⇒ n = √1296 = 36