Question

If selling price is doubled, the profit teiples. What is profit percent

Answer 1

let selling price=2x

let profit=3x

Now,

profit=S.P-C. P

So,

C. P=Profit+S.P

C. P=2x+3x

C.P=5x

Now,

Profit%=profit/C.P*100

So,

Profit%=3x/5x*100

=3/5*100

=3*20

=60%