a man bought 12 oranges for 22.8 naira and sells 4 for 10 naira.what is profit
The cost price of 1 orange = 22.8/12 = 1.9 naira
The selling price of 4 oranges = 10 naira
The selling price of 1 orange = 2.5 naira (10/4)
Profit made on 1 orange = Selling price - Cost price
= 2.5 - 1.9
= 0.6 naira
Profit made on 4 oranges = 0.6 x 4 = 2.4 naira
Therefore, the profit made is 2.4 naira.