A) Rs. 800
B) Rs. 1000
C) Rs. 1200
D) Rs. 1400
Correct Answer: C
Solution :
[c] Let cost price of transistor = Rs. x According to the question, CP of transistor \[=x\times \frac{105}{100}\] and SP of transistor\[=\left( \frac{115x}{100}+6 \right)\] \[\therefore \] Profit percentage \[=\frac{SP-CP}{CP}\times 100\] \[\Rightarrow \] \[10=\frac{\frac{115x}{100}+6-\frac{105x}{100}}{\frac{105x}{100}}\times 100\] \[\Rightarrow \] \[10=\frac{(10x+600)\,100}{105x}\] \[\Rightarrow \] \[105x=100x+600\]\[\Rightarrow \]\[5x=6000\] \[\therefore \] x = Rs. 1200 |
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