Question

By selling 125dvd a man gain an amount equal to the spelling price of 5dvd find this gain/

Answer 1

Hlw mate!!!

Thanks for asking the question.
Let the selling price of each cassette=Rs.x
Selling price of 125 cassettes=Rs.125x
Profit gained=Rs.5x
CP=SP-Profit
CP=120x
Profit%=(profit/CP)*100
Profit%=(5x/120x)*100
Profit=4.150~4%

Hope it helpful