4MA1/1F Jan 2022, Question 12: Constructing Equations
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1F (Foundation) · Calculator · 3 marks
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The question, in short
Three people pick cucumbers in terms of C: Jena picks 5 fewer than Alisa, Mikael picks twice Alisa's amount. Find a simplified formula for the total T in terms of C.
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Solution · 3 marks
- 1Alisa picks C cucumbers
- 2Jena picks C − 5 cucumbers
- 3Mikael picks 2C cucumbers
- 4Total T = C + (C − 5) + 2C
- 5T = C + C − 5 + 2C
- 6T = 4C − 5
AnswerT = 4C − 5
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