Question

A man makes 20% profit by selling watch for 500. Find cp​

Answer 1

Here,

Profit - 20%

Sp - 500

Cp - ?

Now, ( let, Cp be x )

Sp = Cp + P% of Cp

500 = x + 20/100*x

500 = (100x + 20x)/100

500*100 = 120x

50000 = 120x

x = 416.66

Cp = 416.66

I hope you understand...