Question

a man invested certain money .it became double in 6 years.find the sum ?

Answer 1

Let the sum of money be x
According to question,amount is =6 times the sum
=2x
Considering the formula,
A=P+SI
2x=x+SI
SI=x
SI=PRT/100
X=X×R×6/100
X=X×R×2/50
50X=2X×R
50X/2X=R
25=R
RATE=25%
Sum=x