The number of perfect square numbers between 50 and 1000 is?
Show answer & explanation
Correct answer: D
Explanation
Given:
Range = 50 to 1000
Formula:
Perfect square numbers = n²
√50 ≈ 7.07 ⇒ First perfect square = 8² = 64
√1000 ≈ 31.62 ⇒ Last perfect square = 31² = 961
Numbers = 8² to 31²
Total number = 31 − 8 + 1 = 24
Perfect square numbers = 24