(46)² - (?)² = 4398 - 3066

A. 16

B. 28

C. 36

D. 42

E. None of these

Answer: Option B

Solution(By Examveda Team)

Let (46)² - x² = 4398 - 3066
Then, (46)² - x² = 1332
⇒ x² = (46)² - 1332
∴ x² = (50 - 4)² - 1332
x² = (50)² + 4² - 2 × 50 × 4 - 1332
x² = 2500 + 16 - 400 - 1332
x² = 2516 - 1732
x² = 784
x = 28