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Question 20:

If 1 dozen bread rolls cost R10, how much would 4 bread rolls cost?

A. R4.33
B. R10 each
C. R3.33
D. R3.66


Sagot :

To determine the cost of 4 bread rolls if 1 dozen bread rolls cost R10, we will proceed step-by-step:

1. Understand the basics:
- A dozen means 12 items.
- The cost of 1 dozen (i.e., 12 bread rolls) is R10.

2. Calculate the cost of one bread roll:
- Since 1 dozen (12 bread rolls) costs R10, we need to find the cost of one bread roll.
- To find the cost of one bread roll, we divide the total cost of 1 dozen by the number of bread rolls in a dozen:
[tex]\[ \text{Cost per bread roll} = \frac{10}{12} = \frac{5}{6} \approx 0.8333 \text{ (R)} \][/tex]
- Therefore, the cost of one bread roll is approximately R0.8333.

3. Calculate the cost of 4 bread rolls:
- Now that we know the cost of one bread roll is approximately R0.8333, we can determine the cost of 4 bread rolls by multiplying the cost of one bread roll by 4:
[tex]\[ \text{Cost of 4 bread rolls} = 0.8333 \times 4 \approx 3.3333 \text{ (R)} \][/tex]

4. Result:
- The cost of 4 bread rolls would be approximately R3.33.

Therefore, the correct option is:
R3.33