Question

A man sold a radio set for ₹250 1/9 of it cost price find cp and profit percent

Answer 1

selling price of radio set= ₹250.
As it is given that 1/9 of its cost price is profit.
let the cost price of radio set be x. profit =1/9x. So
selling price of it=x+1/9x=10x/9 =250
=> 10x=9(250) =>x=2250/10 =₹225.
Cost Price of the radio set=₹225. Profit%=1/9×100=100/9%=11.11%. Hope it helps you...