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Rob wants to buy 30 tubes of crisps. At which shop will Rob pay the least amount of money? Show working to support your answer.

Let's compare the two shops based on Rob's plan to buy 30 tubes of crisps.

### **Bargain Hut:**
- The deal is "Buy 2, get 1 free."
- For every 3 tubes, Rob only pays for 2.

1. To buy 30 tubes, Rob will get 10 tubes for free.
2. That means he will pay for \( \frac{30}{3} \times 2 = 20 \) tubes.
3. The cost per tube is £3.99, so Rob will pay \( 20 \times 3.99 = 79.80 \) at **Bargain Hut**.

### **Mega Saver:**
- The price is £3.99 per tube with a 20% discount.

1. The discount on each tube is \( 20\% \) of £3.99, which is:
   \[
   3.99 \times 0.20 = 0.798
   \]
   So, the discounted price per tube is:
   \[
   3.99 - 0.798 = 3.192
   \]
2. For 30 tubes, the total cost is:
   \[
   30 \times 3.192 = 95.76
   \]

### **Comparison:**
- At **Bargain Hut**, Rob will pay £79.80.
- At **Mega Saver**, Rob will pay £95.76.

Therefore, **Bargain Hut** offers the better deal, and Rob will pay the least amount of money there.

Do you need further details or have any questions? 

### Related Questions:
1. What would be the cost difference if Rob bought only 15 tubes?
2. How much does Rob save per tube with the Bargain Hut deal?
3. If Mega Saver offered a 30% discount instead, how much would Rob save?
4. What would happen if Rob wanted to buy 45 tubes—how would the costs compare then?
5. How many tubes would Rob need to buy for the costs at both shops to be the same?

### Tip:
Always calculate the total cost for each option to compare multiple discount offers effectively!

Find out which shop offers the best deal for buying 30 tubes of crisps: Bargain Hut with its 'Buy 2, get 1 free' deal, or Mega Saver with a 20% discount. Learn how to calculate and compare costs step-by-step to see where Rob can save the most money.

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