Question

at simple interest a sum becomes 6/5 of itself in in 5.2 years the rate of interest per annum is​

Answer 1

Step-by-step explanation:

let initially number is x

6/5 of x=6x/5

time =5.2 year

rate=r%

SI= final number -initial number

SI= 6x/5 - x= x/5

so ,x/5=(x)×5.2×r /100

r= 3.84%