A) 18% pa
B) 25% pa
C) 22% pa
D) 20% pa
Correct Answer: D
Solution :
Let sum=p Then, simple interest \[3p-p=2p\] Hence, rate =\[\frac{\text{simple}\,\,\text{interest }\!\!\times\!\!\text{ 100}}{sum\times time}\] \[=\frac{2p\times 100}{p\times 10}\] \[=20%\,\,pa\]
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