Market Day: Running a Stall

🎯 What You'll Learn

You will think like a market trader, calculating how much you earn, spend, and profit.

🏪 Market Story

Emeka sets up a small stall selling pure water. He buys a bag of 20 sachets for ₦200. He sells each sachet for ₦20. If he sells all 20, how much does he make? And what's his profit?

📝 Let's Learn

Let's help Emeka calculate:

Step 1 — Revenue (money from selling): 20 sachets × ₦20 each = ₦400.

Step 2 — Cost (money spent buying): ₦200.

Step 3 — Profit (money earned): Revenue − Cost = ₦400 − ₦200 = ₦200 profit!

Profit = What you sell for − What you paid

Example 1: Funke buys 10 oranges for ₦50 (₦5 each) and sells each for ₦10. Revenue: 10 × ₦10 = ₦100. Cost: ₦50. Profit: ₦100 − ₦50 = ₦50.

Example 2: Tunde buys 5 pencils for ₦40 and sells each for ₦15. Revenue: 5 × ₦15 = ₦75. Cost: ₦40. Profit: ₦75 − ₦40 = ₦35.

✏️ Practice Questions

1. Amina buys 8 biscuit packs for ₦80 total. She sells each for ₦15. What is her revenue and profit?
2. Chidi buys a crate of 30 eggs for ₦150. He sells each egg for ₦10. What is his profit?
3. Bola spends ₦100 on 20 sweets and sells each for ₦8. Does she make a profit?

Click to see answers

1. Revenue: 8 × ₦15 = ₦120. Profit: ₦120 − ₦80 = ₦40 profit.
2. Revenue: 30 × ₦10 = ₦300. Profit: ₦300 − ₦150 = ₦150 profit.
3. Revenue: 20 × ₦8 = ₦160. Profit: ₦160 − ₦100 = ₦60 profit. Yes!

💡 Remember

Profit = Revenue (selling price) − Cost (buying price). To make a profit, you must sell for more than you paid. This is how all businesses work!