4MA1/1F Jun 2019, Question 17: Dividing in a Given Ratio
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1F (Foundation) · Calculator · 4 marks
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The question, in short
Given red to blue buttons as 5:3 and blue to green as 1:2, with 48 green buttons, work out how many red buttons are in the box.
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Solution · 4 marks
- 1Blue : green = 1 : 2, so blue = 48 ÷ 2 = 24
- 2Red : blue = 5 : 3, so one share = 24 ÷ 3 = 8
- 3Red = 5 × 8 = 40
Answer40
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