Question

oranges are bought at 6 for rupees 20 and sold at 4 30 18 now find the gain or loss percent

Answer 1

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 %

Answer 2

35% is the profit or gain