• question_answer Mayur and Vishal borrowed Rs. 2250 and Rs. 2500 respectively at the same rate of simple interest for 3 years. If the interest paid by Vishal is Rs. 45 more than that paid by Mayur, what is the rate of interest per annum? A) $3%p.a.$                     B) $4%p.a.$C) $5%p.a.$                     D) $6%p.a.$

(d) Let interest rate be r. Interest (Mayur) $=\frac{2250\times r\times 3}{100};$ Interest (Vishal) $=\frac{2500\times r\times 3}{100}$ $\Rightarrow$$\frac{3r}{100}\left( 2500-2250 \right)=45$ $\Rightarrow$$r=\frac{4500}{3\times \left( 250 \right)}=6$