Question

selling price 690 profit 15​

Answer 1

Step-by-step explanation:

let x be the cot price

cost price = selling price - profit of cost price

x = 690 - 15% of x

x = 690 - 0.15 x

x+ 0.15 = 690

1.15 x = 690

x =690 ÷ 1.15

x= 600

the cost rupees is 600.