Question

a dishonest shopkeeper claims to sell his goods at cost price but uses a weight 800gm in place of standard 1 kg weightwhat is his percent​

Answer 1

Let the C.P. = Rs.100 per kg, =Rs.100 per 1000 gm=Rs.1 per 10 gm

The shopkeeper uses 800 gm weight as a 1 kg weight so his gain = Cost of 200 gm = Rs.20

∴ His gain% =  

80

20

​  

×100=25%