Question

by selling an article at writer gives a discount of 5% if he gives a discount of 10% B under rupees 15 days as profit what is the MP of article

Answer 1

5 %= 15
1%= 15/5 = 3
100 %= 3× 100 = 300 will be the answer

Answer 2

 let marked price be x 
7% of x -15 = 5% of x 
0.07x-15 = 0.05x 
0.02 x =15 
x = 15/0.02
x = 1500/2 
x = 750 
Marked price = 750