Question

A sum of money invested at simple
interest becomes 13/10 of itself in 2 years
and 6 months. What is the rate (in
percentage) of interest per annum?

7. 10

2. 15

3 12

4 18​

Answer 1

Answer:

12

Step-by-step explanation:

P(1+tr/100) = 13/10*p

1+tr/100 = 13/10

tr/100= 3/10

t= 2 years 6 months= 5/2 years

r=3/10*2/5*100

r=60/5

r=12