Question

How many three-digit numbers are divisible by 9?

विकल्प

• 86

• 90

• 96

• 100

Answer 1

100

Explanation:

Three-digit numbers divisible by 9 are 108, 117, 126, ..., 999.

Let T_n = 999.

Then, 108 + (n – 1) × 9 = 999.

∴ (n – 1) × 9 = 891

⇒ (n – 1) = 99

⇒ n = 100