Question

How many two-digit numbers are divisible by 3?

विकल्प

• 25

• 30

• 32

• 36

Answer 1

30

Explanation:

Two-digit numbers divisible by 3 are 12, 15, 18, ..., 99.

Let T_n = 99.

Then, 12 + (n – 1) × 3 = 99

⇒ (n – 1) × 3 = 87

⇒ n = 30