A man lent money of Rs. 2500 on simple interest for rate on interest being same as number of years. If he got Rs. 900 as interest amount at the end of the period then what is the rate of interest?	Choose the most appropriate option
A) 6% B) 4% C) 5% D) 3% E) 2%
Explanation :   SI = pnr   SI = (2500*3r*3r)=900   r2 = 25   r = 5%   Answer : 5%
<result>C</result>
A man lent money of Rs. 2500 on simple interest for rate on interest being same as number of years. If he got Rs. 900 as interest amount at the end of the period then what is the rate of interest?