Question

a shopkeeper bought a chair for Rs. 400 and sold it for Rs. 420 find the percentage of profit or loss.​

Answer 1

$\rm\bf\underline{Solution:}$

cost price = cp = Rs 375

selling price =sp =Rs 400

sp > cp

 gain = sp- cp

g= 400-375=25

gain % = gain*100/cp

= (25*100)/375

=20/3%

Answer 2

Answer:

A shopkeeper bought a chair = 400

A shopkeeper sold a chair = 420

Profit = 420 - 400 = 20% profit