Correct Answer - Option 2 : Rs. 810
Given:
Selling price = RS. 667.5
Loss% = 11%
Formula used:
When there is a loss of r%;
CP = SP[100/(100 - Loss%)]
When there is a profit of r%;
SP = CP[(100 + p%)/100]
Calculation:
Cost price of the article = 667.5[100/(100 - 11)]
= 667.5 × (100/89)
= Rs. 750
∴ SP for 8% profit = 750[(100 + 8)/100]
= 750 × (108/100)
= Rs. 810
Alternative Method:
Let the CP = x
∵ There is a loss;
∴ 89% of x = 667.5
⇒ x = 667.5/(89%)
∴ For 8% profit;
SP = [667.5/(89%)] × 108%
= Rs. 810