Question

if an investment triples itsefl in 30 years , then the rate od simple interest is

Answer 1

Suppose basic amount is X

then rate of simple interest = 20/3% = 6.67%

Answer 2

Suppose investment amt. = 100
Then value of investment after 30 yrs. =300
Interest = 200
S.I. = P*R*T/100
R= S.I.*100/T*P
R = 200*100/100*30
R=6.67%