15% of the total number of biscuits in a bottle is 30. The total number of biscuits is _______.

Given that 15% of the total number of biscuits in a bottle is 30.

⇒

Total no. of biscuits

⇒ Total no. of biscuits = 200

(OR)

Shortcut method:

Given that 15 % = 30 biscuits

Dividing both sides with 15

1 % = 2 biscuits

Since 100% is total no. of biscuits

Multiply by 100 on both sides

100 % = 200 biscuits

∴ Total no. of biscuits = 200

Option B is the correct answer.