Question

a trader marks his goods 40% above the cost price he sells them at the discount of 20% what is his loss or gain percentage

Answer 1

costprice=×
extra charge=40percent of ×
dicount=20percent
real cp=×+40percent of×-20percent
x+40
$\frac{40}{100} \times x$
$\frac{40x}{100}$

$\frac{2x}{5}$
cp =2xupon5
sp =co-20percent
2xupon25
loss =3xupon25
losspercent=5×3xupon2x×25×100
loss percent =30percent