Question

The selling price of 15 articles is equal to the cost price of 20 articles. Find the gain or loss
per cent. and it's answer should be 100/3​

Answer 1

Step-by-step explanation:

sp of 15 articles =x= cp of 20 articles

=> sp of 1 article =x/15

cp of 1 article = x/20

gain = sp - cp

=x/15 -x/20=(4x -3x)/60=x/60

gain %= gain /cp x100

x x

= __÷ __ x100

60 20

x 20

= __× __× 100

60 x

= 20/60 ×100=1/3×100

= 100/3