How many perfect squares lie between 120 and 300?

7

The correct answer is Option (3) → 7

We look for perfect squares between 120 and 300.

• $11^2 = 121$
• $12^2 = 144$
• $13^2 = 169$
• $14^2 = 196$
• $15^2 = 225$
• $16^2 = 256$
• $17^2 = 289$
• $18^2 = 324$ (exceeds 300)

So the perfect squares are:
121, 144, 169, 196, 225, 256, 289

Total number of perfect squares = 7