Question

The ratio of the cost price and selling price of an article is 20:21. Find the gain per cent​

Answer 1

Step-by-step explanation:

let the cp be 20 X

then so be 21 X

gain = sp- cp

= 21 X - 20 X

= X

gain % = (gain / cp ) *100

= (X/20x) *100 = 100/20 = 5%

Answer 2

Answer:

5% is your answer..........