Question

A merchant sells an article for Rs.24 and gains as much percent as the cost price of article. Find the cost price of article.​

Answer 1

Answer:

20

Step-by-step explanation:

gain percent=gain/cp*100

let cp be x

according to the question,cp=gain %

gain=sp-cp

x=24/x-x/x*100

x^2=2400-100x

x^2+100x-2400=0

x=-120 or 20

As cp cannot be negative,x=20