Question

by selling 90computer a shopkeeper gains the amount which is equal the selling price of 10 computer find the profit %had he purchased them 30000rseach what would have selling price of computer

Answer 1

let the sp of a computer is x
then sp of 90 computer=90x
profit= sp of 10 computer
=10x
cpof 90 computer = 90x-10x=80x
profit%=(10x/80x)*100
=12.5%
= 30000*12.5/100
=3750
sp= cp+ prophit
=30000+3750
=33750