Question

a dealer marks his good at 30percent above the cost price and allow a discount of 20percent on the marked price find gain or loss percent

Answer 1

It is a 4% gain as


Let us say the price was rs 100 (for easier calculations)
Then je marked it 30% high so now the price becomes 130 rs
Now subtract 20% from 130 that will become

130-20/100*130=104

So now his profit becomes 4 %

Answer 2

if we take example 100 rupees
so,30% is 30 rupees
=total 130 rupees
=in 130 rupees 20% is ?
20%=26 rupees
so,130-26=104
so, there gain is 4%