| A sell an article to B at a profit of 18%. B sells the same to C at a profit of 20% C sells it to D at Rs. 2301 thereby earning a profit of 30%. The cost price of A is |
A) Rs. 1250
B) Rs.1275
C) Rs. 1350
D) Rs. 1375
Correct Answer: A
Solution :
| Let the cost price of A be Rs. x. |
| Then, 130% of 120% of 118% of \[x=2301\] |
| \[\Rightarrow \]\[\frac{130}{100}\times \frac{120}{100}\times \frac{118}{100}\times x=2301\] |
| \[\Rightarrow \]\[x=\text{Rs}\text{. }\left( \frac{2301\times 100\times 100\times 100}{130\times 120\times 118} \right)=\text{Rs}\text{. 1250}\] |
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