The correct option is
B 35% profit
Given that, the marked price of a camera is
32 of the cost price and the selling price is
910 of the marked price.
To find out: Profit or loss percentage.
Let the cost price of the camera be Rs. x.
Hence, its marked price =32x=Rs. 3x2
Also, the selling price =910×3x2=Rs. 27x20
The selling price is more than the cost price.
Hence, it will be a profit.
We know that, profit%=S.P.−C.P.C.P.×100
∴ profit%=27x20−xx×100
⇒27x−20x20x×100
⇒720×100=7×5
∴ profit%=35%
Hence, the required profit percent is 35%.