Money Problems: Comparing Prices

🎯 What You'll Learn

You will learn to compare prices from different sellers and find the best deal using division and subtraction.

🏪 Market Story

Amina's mother sends her to buy tomatoes. Two sellers offer different deals:

• Seller A: 5 tomatoes for ₦100
• Seller B: 8 tomatoes for ₦120

Which is the better deal? Amina needs to find the price per tomato for each seller.

📝 Let's Learn

To compare deals, find the price per item (unit price):

Seller A: ₦100 ÷ 5 = ₦20 per tomato.

Seller B: ₦120 ÷ 8 = ₦15 per tomato.

Seller B is cheaper per tomato! The difference: ₦20 − ₦15 = ₦5 cheaper per tomato.

Example 1: Shop A sells 3 pens for ₦45 (₦15 each). Shop B sells 5 pens for ₦60 (₦12 each). Shop B is cheaper by ₦3 per pen.

Example 2: Pack A: 4 biscuits for ₦40 (₦10 each). Pack B: 6 biscuits for ₦48 (₦8 each). Pack B is cheaper by ₦2 per biscuit.

✏️ Practice Questions

1. Stall A: 6 oranges for ₦60. Stall B: 10 oranges for ₦80. Which stall has the better price per orange?
2. Brand A rice: 2 kg for ₦200. Brand B rice: 5 kg for ₦450. Which brand is cheaper per kg?
3. Emeka can buy 4 exercise books for ₦100 or 3 for ₦60. Which is the better deal?

Click to see answers

1. A: ₦60 ÷ 6 = ₦10 each. B: ₦80 ÷ 10 = ₦8 each. Stall B is cheaper.
2. A: ₦200 ÷ 2 = ₦100 per kg. B: ₦450 ÷ 5 = ₦90 per kg. Brand B is cheaper.
3. 4 for ₦100: ₦100 ÷ 4 = ₦25 each. 3 for ₦60: ₦60 ÷ 3 = ₦20 each. 3 for ₦60 is cheaper per book.

💡 Remember

To find the best deal, divide the total price by the number of items to get the price per item. Lower price per item = better deal. Smart shoppers always compare!