An article was sold for Rs.14000. Had a discount of 10% was offered, a profit of 5% would have been made. What is the cost price?

Correct option is A

​$$\text{Marked price} = Rs. \ 14000,$$

$$\text{Discount} = 10\%$$

$$\text{Profit} = 5\%$$

$$\text{Selling price} = 14000 \times \frac{90}{100}$$ $$= Rs. \ 12,600$$

$$\text{Cost price} = \frac{Rs. \ 12,600 \times 100}{105} = Rs. \ 12,000$$​​​​​​