| A sum of Rs. 400 amounts to Rs. 480 in 4 yr at simple interest. What will it amount to if the rate of interest is increased by 2%? |
A) Rs. 484
B) Rs. 560
C) Rs. 512
D) None of these
Correct Answer: C
Solution :
| \[R=\frac{80\times 100}{400\times 4}=5\]% |
| \[\therefore \] \[SI=\frac{400\times 7\times 4}{100}=Rs.\,112\] |
| \[\therefore \] Amount \[=Rs.(400+112)=Rs.\,\,512\] |
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