Simple And Compound Interest

Question 1

Finding CI for 2 years method.
Solve for 15.

Answer 1

Double 15.—30
(Square 15)/100—225/100=2.25
Add the both=32.25

Question 2

If interests are same and the ratio of the interests is given, then (A) ratio is inverse of the interests ratio.

Answer 2

(A) Principals Ratio