A lent Rs. 5000 to B for 2 years and Rs 3000 to C for 4 years on simple interest at the same rate of interest and received Rs 2200 in all from both of them as interest. The rate of interest per annum is
Options
A) 9%  B) 10%  C) 11%  D) 12%  E) None of these
Explanation:   Let R% be the rate of simple interest then,   from question we can conclude that   (5000∗R∗2/100)+(3000∗R∗4/100)=2200   &lt;=&gt;100R+120R=2200   &lt;=&gt;R=10%   Option 10%
<result>B</result>
A lent Rs. 5000 to B for 2 years and Rs 3000 to C for 4 years on simple interest at the same rate of interest and received Rs 2200 in all from both of them as interest. The rate of interest per annum is