A) 25%
B) 30%
C) 45%
D) 50%
Correct Answer: D
Solution :
Let the principal \[=Rs.\,P\] and the rate of interest \[=r%\] According to question, \[A=2.25P,\] \[n=2\,yr\] \[\therefore \] \[2.25=P{{\left( 1+\frac{r}{100} \right)}^{2}}\] \[\Rightarrow \] \[2.25={{\left( 1+\frac{r}{100} \right)}^{2}}\] \[\Rightarrow \] \[1.5=1+\frac{r}{100}\] \[\Rightarrow \] \[\frac{r}{100}=0.5\] \[\Rightarrow \] \[r=50%\]You need to login to perform this action.
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