What time will be taken by an amount of Rs. 900 to yield Rs. 81 as interest at 4.5% per annum of simple interest?
Pick one
A) 7
B) 8
C) 9
D) 2
E) 1
Explanation:   P= Rs 900   Rate = 4.5*   SI= Rs 81   =&gt; SI= Time*P*rate   calculating for rate,   =&gt; Time= SI/rate*P   = 81/4.5%*900   =&gt; 2 years   Thus, it will take 2 years to yield Rs 81.   ANSWER: 2
<result>D</result>
What time will be taken by an amount of Rs. 900 to yield Rs. 81 as interest at 4.5% per annum of simple interest?