Question

on selling a chair for rupees 720 a man gains 20% the cost price of the chair is

Answer 1

C. P = .rs 600 by the formula of calculating c. P

Answer 2

Cost Price of chair +20% of price=Selling Price
Let the Cost Price of chair be Rs.x
Therefore,x+(20/100)x=720
                (100x+20x)/100=720
                 120x/100=720
                  x=720(100/120)
                  x=(720×5)/6
                  x=3600/6
                  x=600
The Cost Price of the chair is Rs.600