The simple interest on a sum of money is Rs. 50. What is the sum?
I.The interest rate is 10% p.a.
II.The sum earned simple interest in 10 years.
Choose the correct option
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
EXPLANATION   Explanation:   Given : S.I. = Rs. 50.   I gives, R = 10% p.a.   II gives, T = 10 years.   Sum =(100 x S.I/ T x R) = Rs. (100x50/10x10) = Rs.50   Thus, I and II together give the answer.   answer is (Both I and II are necessary to answer).
<result>E</result>
The simple interest on a sum of money is Rs. 50. What is the sum?
I.The interest rate is 10% p.a.
II.The sum earned simple interest in 10 years.