The price of an article was first increased by 10% and then

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The price of an article was first increased by 10% and then again by 20%. If the last increased price be 33, the original price was

1. 30
2. 27.50
3. 26.50
4. 25

Correct Option: D

Using Rule 7,
Tricky approach
Effective increase percentage

=		10 + 20 +	20 × 10		% = 32%
			100

∴ x ×	132	= 33
	100

⇒ x =	33 × 100	= ₹ 25
	132