Question

Orange are bought at 6 for rupees 20 and sold at 4 for rupees 18. find the gain or loss percent.

Answer 1

The profit percentage is 4% for 4 oranges
And
35% for 6 oranges

Answer 2

cost price of 6 oranges = rs 20

cost price of 1 orange = rs 20/6

sold price or selling price of 4 oranges = rs 18

sold price of 1 orange = rs18/4

you can see that there is a profit,

so profit = P = selling price - cost price

= rs18/4-20/6

= 7/6

profit% or u can say gain%= profit/cost price ×100 ( it is a formula )

= 7/6/20/6×100

= 7×6/20×7×100

= 35% is the profit or gain %