A) Rs.8000
B) Rs, 9000
C) Rs. 15000
D) Rs. 12000
E) Rs.10000
Correct Answer: D
Solution :
Let the investment be Rs. x. \[\text{S}\text{.I=}\frac{\text{Principal }\!\!\times\!\!\text{ Time }\!\!\times\!\!\text{ Rate}}{\text{100}}\] According to the question, \[\frac{x\times 2\times 8}{100}-\frac{x\times 3\times 9}{2\times 100}=300\] \[\Rightarrow \frac{16x}{100}-\frac{27x}{200}=300\] \[\Rightarrow \frac{32x-27x}{200}=300\] \[\Rightarrow 5x=300\times 200\] \[\Rightarrow x=\frac{300\times 200}{5}=Rs.12000\]You need to login to perform this action.
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