What is the ratio of simple interest earned on a given sum for 6 years and 9 years at the same rate of interest?
A. 1 : 3
B. 1 : 4
C. 2 : 3
D. None of these
Answer:C
What is the ratio of simple interest earned on a given sum for 6 years and 9 years at the same rate of interest?
A. 1 : 3 B. 1 : 4 C. 2 : 3 D. None of these
Explanation: Assume the principal is P and the interest rate is R%.P x R x 6/100/P x R x 9/100 = 6PR/9 PR= 6/9 = 2:3.