maths
posted by peehu on .
due to competition,a trader allows a discount of 15% on the marked price of his commodity and still makes a profit of 19% on the cost price.had he sold his commodity at the marked price,what would have been his profit percent

X = marked price C = cost
0.85 X = sale price = 1.19 C
C = 0.7143 X X = 1.400 C
If sold for X = 1.40 C, the profit would be 40%