Question

what sum will amount to 6600 in 2 years at 10% per annum simple interest

Answer 1

P=6600
T=2 years
R=10 ℅
So
A=p(1+r/100)^n
A=6600(1+10/100)²
A=6600(11/10)²
A=6600*11/10*11/10
A=7986



I hope this will help u
By DEVANSH

Answer 2

Let Principal = x
Rate of interest =10%
Time = 2 years
$S.I. = \frac{P×R×T}{100} \\ = \frac{x \times 10 \times 2}{100} = \frac{ {x} }{5} \\ Amount = Principal+ S.I =x + \frac{x}{5} = \frac{6x}{5}$
According to the question it is 6600
6x/5=6600
x = 6600×5/6=5500
Then Sum or Principal =5500