Question

if the simple interest on rupees 1500 is increased why rupees 30 when the time increase y 8 years the rate percentage prt aanum is​

Answer 1

$\huge\mathfrak\green {Answer-}$

ANSWER

I = PTR/100

Solving for R we get,

R=(I*100)/(P*T)

R= (30*100)/(1500*4) = 3000/6000 = 0.5%

Let us verify for second instance

I = 1500*8*0.5/100 = 6000/100 = 60

There Rate of Interest is 0.5%