Question

Find the rate of interest at which a sum of money will triple itself in 4 years. choose the correct answer:-

a). 40%
b). 50%
c). 60%​

Answer 1

Answer:

Given that, sum of money become after 8 years it triples Let the sum of money be x

Time is 8 years

After 8 years it triples . So it becomes 3x.

So the simple interest is 3x−x=2x

Let, the rate of interest be y.

So ,

100

x×y×8

=2x

Or,y=

8

200

=25%

Answer 2

Answer:

(c) 60% is the answer I think