At a certain rate of simple interest per annum the amount due in 3 & 1/2 yrs and 5 & 1/2 yrs are respectively Rs4560 & Rs4840. Find the rate of Simple Interest ?
Choose the correct choice from the following answers:
A) 1.43  B) 4.43  C) 2.43  D) 3.43  E) 5.34
let the amount p &amp; rate r   now 4560-p=(p*r*7/2)/100 .....(1)   4840-p=(p*r*11/2)/100 .....(2)   by solving the eq. we get the p=4070 and r=3.43   so the ans is 3.43   ANSWER:3.43
<result>D</result>
At a certain rate of simple interest per annum the amount due in 3 & 1/2 yrs and 5 & 1/2 yrs are respectively Rs4560 & Rs4840. Find the rate of Simple Interest ?