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4024/11 May/Jun 2023, Question 4: Constructing Equations

Cambridge O Level Mathematics 4024 · Paper 11 (Non-calculator) · Non-calculator · 3 marks

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The question, in short

Write expressions in t for Maryam's and Colin's ages relative to Benjamin's t years, then evaluate 5a − 2b using a = 3 and b = −2.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Part (ai) · 1 mark

Write an expression in t for Maryam's age, given she is 5 years younger than Benjamin.

  1. 1t − 5

Answert − 5

Part (aii) · 1 mark

Write an expression in t for Colin's age, given it is twice Benjamin's age.

  1. 12 × t = 2t

Answer2t

Part (b) · 1 mark

Evaluate 5a − 2b when a = 3 and b = −2.

  1. 15 × 3 − 2 × (−2) = 15 + 4
  2. 2= 19

Answer19

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Also searched as: 4024/11/M/J/23 · 4024_s23_qp_11 · 4024 s23 11 · question 4.
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