Answer: Ade's profit percent =75%
Explanation:
cost price for 20 pencils = N400
Selling price for 20 pencils at N25 each = 25 x 20 =500
Profit = Selling price - Cost price= N500 - N400= N100
Profit Percent = Profit/ Cost price x 100
= 100/ 400 x 100= 75%