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MaRussiya [10]
3 years ago
15

To make one cheese sandwich, Tina uses one bread roll and two cheese slices.

Mathematics
1 answer:
mixer [17]3 years ago
8 0

Answer:

£42.04 is the correct answer.

Step-by-step explanation:

Cost of pack of 15 bread rolls = £1.91

Cost of pack of 20 cheese slices = £2.23

She has to buy exactly twice as many cheese slices as bread rolls.

She has to make more than 100 cheese sandwiches.

Number of bread rolls required for 100 bread rolls.

Minimum 15\times7 = 105 bread rolls are to be bought.

105 bread rolls mean 210 cheese slices but it is a pack of 20 cheese slices.

So, at least 220 cheese slices can be bought.

But, 220/2 = 110 bread rolls are not possible to be bought.

So, at least 120 (15 \times 8 i.e. 8 packs) bread rolls have to be bought and 120 \times 2 = 240 (20 \times 12 i.e. 12 packs) of sandwiches have to be bought.

So, minimum amount to be spent for at least 100 cheese sandwiches

= 1.91 \times 8 + 2.23 \times 12 = £42.04

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