https://file.aiquickdraw.com/mathbot/file/1727215829281bb9dx1l1.jpg

Let's break down the problem step by step:

1. **Costs of Ingredients**:
   - A **bar of chocolate** weighs 200 g and costs £2.50.
   - A **jar of peanut butter** contains 250 g and costs £1.70.
   - A **packet of crisped rice** contains 300 g and costs £2.00.

2. **Quantities Used by John**:
   - John makes 4.5 kg of mixture. This is equivalent to 4500 g.
   - To calculate how many bars, jars, and packets are needed:
     - **Chocolate**: 200 g per bar, so \( \frac{4500}{200} = 22.5 \) bars (round up to 23 bars).
     - **Peanut butter**: 250 g per jar, so \( \frac{4500}{250} = 18 \) jars.
     - **Crisped rice**: 300 g per packet, so \( \frac{4500}{300} = 15 \) packets.

3. **Total Cost**:
   - For **chocolate**: \( 23 \times 2.50 = £57.50 \).
   - For **peanut butter**: \( 18 \times 1.70 = £30.60 \).
   - For **crisped rice**: \( 15 \times 2.00 = £30.00 \).

   The total cost is:
   \[
   57.50 + 30.60 + 30.00 = £118.10
   \]

4. **Revenue**:
   - John makes 100 chocolate squares and sells each for 60p, which is equivalent to £0.60.
   - Revenue: \( 100 \times 0.60 = £60.00 \).

5. **Profit**:
   \[
   \text{Profit} = \text{Revenue} - \text{Cost} = £60.00 - £118.10 = -£58.10
   \]
   John makes a loss of £58.10.

Would you like further clarifications or details?

Here are some related questions to explore:
1. What could John do to increase his profit?
2. How would the cost change if John used only 3 kg of mixture?
3. What would happen if John charged 80p per square instead?
4. How much would John need to charge per square to break even?
5. What if the ingredient prices increased by 10%? How would that affect the profit?

**Tip**: To maximize profit, always compare the cost of ingredients with the selling price per unit, and adjust either the price or the quantity sold accordingly.

A bar of chocolate weighs 200 g and costs £2.50. A jar of peanut butter contains 250 g and costs £1.70. A packet of crisped rice contains 300 g and costs £2.00. John makes 4.5 kg of mixture, from which he can cut 100 chocolate squares. He charges 60p for each square and sells all 100 squares. How much profit does he make?

Learn how to calculate the cost and profit for John’s chocolate squares. This involves determining ingredient quantities, total cost, and analyzing profit or loss when 100 chocolate squares are sold at 60p each. Suitable for Grades 7-9.

Math Problem Statement

Solution

Ask a new question for Free

By Image

Math Problem Analysis

Mathematical Concepts

Formulas

Theorems

Suitable Grade Level

Related Recommendation