What will be the ratio of simple interest earned by certain amount at the same rate of interest for 2 years and that for 10 years?
Choose one:
A) 3 : 2
B) 1 : 3
C) 2 : 3
D) 1 : 5
E) 2 : 1
Explanation :   Simple Interest = PRT/100   Here Principal(P) and Rate of Interest (R) are constants   Hence, Simple Interest ∝ T   Required Ratio = Simple Interest for 2 years/Simple Interest for 10 years   =T1/T2   =2/10   =1/5   =1:5   Answer : Option 1 : 5
<result>D</result>
What will be the ratio of simple interest earned by certain amount at the same rate of interest for 2 years and that for 10 years?