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4024/22 May/Jun 2024, Question 1: Earnings and Deductions

Cambridge O Level Mathematics 4024 · Paper 22 (Calculator) · Calculator · 8 marks

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The question, in short

Work out money left from $10 after buying 1.2 kg of oranges at $1.45 per kg, read a fee graph, find a new fee line, and simplify a ratio of masses.

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

Part (a) · 1 mark

Calculate the change from $10 when 1.2 kg of oranges is bought at $1.45 per kilogram.

  1. 11.45 × 1.2 = 1.74
  2. 210 − 1.74 = $8.26

Answer8.26

Part (bi) · 1 mark

Using the graph, determine the strawberry mass sold on a day when the fee is $240.

  1. 1Go across from $240 to the line, then down
  2. 2Mass ≈ 330 kg

Answer328 to 332

Part (bii) · 2 marks

Work out the combined fee for Saturday's 270 kg and Sunday's 220 kg using the graph.

  1. 1Read 270 kg: fee ≈ $210; read 220 kg: fee ≈ $185
  2. 2Total ≈ 210 + 185 = $395

Answer388 to 402

Part (biii) · 2 marks

On the grid, draw the line for a daily fee of $90 plus $60 per 100 kg, from 0 to 500 kg.

  1. 1At 0 kg: fee = $90; at 500 kg: 90 + 5 × 60 = $390
  2. 2Rule a line from (0, 90) to (500, 390)

AnswerRuled line from (0, 90) to (500, 390)

Part (c) · 2 marks

Express 1.6 kg : 600 g : 2.4 kg as a ratio in its simplest form.

  1. 11.6 kg : 600 g : 2.4 kg = 1600 : 600 : 2400
  2. 2Divide by 200: 8 : 3 : 12

Answer8 : 3 : 12

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Also searched as: 4024/22/M/J/24 · 4024_s24_qp_22 · 4024 s24 22 · question 1.
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