Correct Answer - Option 3 : Rs.10.80
Given:
The selling price = Rs. 9
The loss% = 10
Formula used:
\(L\% =\ {CP\ -\ SP\over CP}× 100\) (Where L = Loss, SP = Selling price, and CP = Cost price)
Calculation:
Let us assume cost price be X
⇒ \(10 =\ {CP\ -\ 9\over CP}× 100\)
⇒ By solving
⇒ CP = 10
⇒ The new selling price at 8% gain = 10 × (108/100) = 10.80
∴ The required result will be 10.80.