Tea Biscuits can be bought in packets of 20 or packets of 24 - OCR - GCSE Maths - Question 5 - 2018 - Paper 1
Question 5
Tea Biscuits can be bought in packets of 20 or packets of 24.
All biscuits are identical in size and quality.
Nada says
The packet of 24 biscuits is better value.
... show full transcript
Worked Solution & Example Answer:Tea Biscuits can be bought in packets of 20 or packets of 24 - OCR - GCSE Maths - Question 5 - 2018 - Paper 1
Step 1
Calculate the unit cost for 20 biscuits
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Answer
The cost for 20 biscuits is £1.50. Therefore, the unit cost is calculated as follows:
Unit cost for 20 biscuits = ( \frac{1.50}{20} = 0.075 ) or 7.5 pence per biscuit.
Step 2
Calculate the unit cost for 24 biscuits
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Answer
The cost for 24 biscuits is £1.80. Therefore, the unit cost is calculated as follows:
Unit cost for 24 biscuits = ( \frac{1.80}{24} = 0.075 ) or 7.5 pence per biscuit.
Step 3
Conclusion about value
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Answer
Nada is incorrect. Both packets provide the same value since the unit cost for both the 20 biscuits and 24 biscuits is 7.5 pence each.
