a) 8%
b) 9%
c) 10%
d) 11%
Answer: c
Explanation:
$$\eqalign{
& {\text{Amount}},\,A = Rs.\,1440 \cr
& {\text{Principal}},\,P = Rs.\,1200 \cr
& {\text{Interest}},\,I = Rs.\,\left( {1440 – 1200} \right) = 240 \cr
& R = \frac{{ {240 \times 100} }}{{ {1200 \times 2} }} = 10\% \cr
& \cr } $$
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