Which of the numbers below is exactly divisible by 33?

Correct option is A

​Given:

Check divisibility by 33
33 = 3 × 11

Concept used:

Rule for divisibility by 3:

Sum of digits is divisible by 3.

Rule for divisibility by 11:

Difference between the sum of alternating digits is divisible by 11

​Solution:​

Check each option:

25080:

$$\text{Sum of digits} = 2 + 5 + 0 + 8 + 0 = 15 \, (\text{divisible by } 3)$$​.

Alternating sum:

$$(2 + 0 + 0) - (5 + 8) = 2 - 13 = -11 \, (\text{divisible by } 11)$$​.

Thus, 25080 divisible by 33