Unit prices
Key Notes :
🧮💡 What is Unit Price?
- The unit price is the cost of one item or one unit.
- It helps us compare which product is cheaper or a better deal! 🛒💸
🧊➡️💲 How to Find Unit Price
👉 Unit Price = Total Cost ÷ Number of Units
Example:
A pack of 5 pencils costs ₹50.
Unit price = 50 ÷ 5 = ₹10 per pencil ✏️💰
📊🛍️ Why Unit Price is Important?
- Helps you compare products of different sizes.
- Helps you save money! 🤑
- Helps you make smart shopping decisions 🧠🛒
🥤📦 Compare Using Unit Prices
Two juice bottles:
- Bottle A: ₹60 for 2 L
- Bottle B: ₹45 for 1 L
Unit prices:
- A → 60 ÷ 2 = ₹30 per L
- B → 45 ÷ 1 = ₹45 per L
So, Bottle A is cheaper! 🥳🍹
🧠🔎 Always Look for Unit Price Labels
- Supermarkets show unit prices on shelves.
- Helps you quickly choose the best value product 🛒🏷️😊
🎯📘 Key Tip
💡 The lower the unit price, the better the deal (usually)!
🌟🧩 Practice Ideas
Calculate unit prices during shopping 🛒✨
Check prices of snacks at home 🍫
Compare price per kg, per L, per piece
Learn with an example
1) An 8-kilogram bag of oranges costs ₹1,262.00.
What is the unit price?
₹______ per kilogram
Find the unit price. Divide the total cost by the number of kilograms.
₹1,262.00 ÷ 8 = ₹157.75
The unit price is ₹157.75 per kilogram.
2) Which is the better buy?
- 3-kilogram bag of rice for ₹297.00
- 5-kilogram bag of rice for ₹494.00
Find each unit price. Divide the total cost by the number of kilograms.
₹297.00 ÷ 3 = ₹99.00
₹494.00 ÷ 5 = ₹98.80
The unit price for the 5-kilogram bag is lower than for the 3-kilogram bag. The 5-kilogram bag is the better buy.
3) Which is the better buy?
- 2-kilogram bag of red onions for ₹136.50
- 5-kilogram bag of red onions for ₹341.00
Find each unit price. Divide the total cost by the number of kilograms.
₹136.50 ÷ 2 = ₹68.25
₹341.00 ÷ 5 = ₹68.20
The unit price for the 5-kilogram bag is lower than for the 2-kilogram bag. The 5-kilogram bag is the better buy.
Let’s practice!🖊️
