A sum of Rs. 2420 is accumulated in 2 years at 10% compund

A sum of Rs. 2420 is accumulated in 2 years at 10% compund interest on a certain amount. Then the original amount is :

Let the principal be Rs. P.
Given in question , Amount ( A ) = Rs. 2420 , Rate ( R ) = 10% , Time = 2 years
Using the given formula ,

∴ A = P		1 +	R		^T
			100

⇒ 2420 = P		1 +	10		²
			100

⇒ 2420 = P ×		1 +	10		²
			100

⇒ 2420 = P		11		²
		10

⇒ P =	2420 × 10 × 10	= Rs. 2000
	11 × 11