A dress is sold at Rs. 550 after allowing a discount of 12%. Find its marked price.
S.P. =Rs. 550
Discount %=12%
Let the marked price be Rs. x.
S.P = Marked price − Discount
x−12100x=550
⇒88x100=550
⇒x=550×10088
⇒x=50×1008
∴x=Rs. 625
hence, the marked price is Rs. 625.