1.  An amount of money was lent for 3 years. What will be the difference between the simple and the compound interest on it at the same rate ?

I.  The rate of interest was 8 p.c.p.a.

II. The total amount of simple interest was ₹ 1200.

A. I alone sufficient while II alone not sufficient to answer
B. II alone sufficient while I alone not sufficient to answer
C. Either I or II alone sufficient to answer
D. Both I and II are not sufficient to answer
E. Both I and II are necessary to answer

Answer: Option E

Explanation:

Given: T = 3 years.

 I. gives: R = 8% p.a.

II. gives: S.I. = ₹ 1200.

Thus, P = ₹ 5000, R = 8% p.a. and T = 3 years.

∴ Difference between C.I. and S.I. may be obtained.

So, the correct answer is (E).