What will the ratio of simple interest earned by certain amount at the same rate of interest for 12 years and that for 10 years. Choose the correct answer
A) 6:5  B) 2:3  C) 2:5  D) 4:3  E) None of these
Explanation:   Let the principal be P and rate be R   then   ratio = [(P∗R∗12/100) /(P∗R∗10/100)]   =12PR /10PR=6:5   Option 6:5
<result>A</result>
What will the ratio of simple interest earned by certain amount at the same rate of interest for 12 years and that for 10 years.