| The simple interest accrued on a certain principal in 5 yr at the rate of 12% per annul is Rs. 1536. What amount of the simple interest would one get if one invests Rs. 1000 more than the previous principal for 2 yr and at the same rate per cent per annum? |
A) Rs. 845.40
B) Rs. 614.40
C) Rs. 2136
D) Rs. 1536
E) None of these
Correct Answer: E
Solution :
| In first condition, |
| \[1536=\frac{x\times 12\times 5}{100}\] |
| \[\Rightarrow \] \[x=\frac{1536\times 100}{60}=2560\] |
| In second condition |
| \[\text{SI=}\frac{3560\times 12\times 2}{100}=\text{Rs}\text{.}\,\,\text{854}\text{.40}\] |
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