4MA1/1F Jun 2021, Question 9: Earnings and Deductions
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1F (Foundation) · Calculator · 3 marks
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The question, in short
Pens cost 34 cents each, with an offer of pay for 2 and get 1 free. Find the total cost for Moritz to get 25 pens.
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Solution · 3 marks
- 125 ÷ 3 = 8.33...
- 28 groups of 3 pens = 24 pens
- 3In each group, pay for 2 pens and get 1 free
- 4So pay for 8 × 2 = 16 pens
- 5One more pen needed to make 25
- 6Total pens to pay for: 16 + 1 = 17
- 717 × 34 = 578
Answer578
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