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0580/33 Oct/Nov 2021, Question 2: Earnings and Deductions

Cambridge IGCSE Mathematics 0580 · Paper 33 (Core) · Calculator · 13 marks

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The question, in short

Use a bar chart of monthly car sales, a garage timetable, pay rates, compound interest and a shared bonus to work out totals, earnings and amounts.

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

Part (ai) · 1 mark

Add a bar for July at 11 cars on the chart.

  1. 1Draw a bar for July up to 11

AnswerBar at height 11

Part (aii) · 1 mark

Find the difference in cars sold between March and May.

  1. 1March = 15, May = 6
  2. 215 − 6 = 9

Answer9

Part (b) · 2 marks

Work out total opening hours for the whole week from the timetable.

  1. 1Mon−Fri: 8.30 am to 5.30 pm = 9 h, × 5 = 45 h
  2. 2Saturday: 8.30 am to 1.00 pm = 4.5 h
  3. 3Total = 45 + 4.5 = 49.5 hours

Answer49.5

Part (c) · 3 marks

Find Mohammed's weekly pay using 36 hours at $10.50 and Saturday at 1 1/2 times that rate.

  1. 1Mon−Fri: 36 × 10.50 = $378
  2. 2Saturday: 2 × 10.50 × 1.5 = $31.50
  3. 3Total = 378 + 31.50 = $409.50

Answer409.50

Part (d) · 3 marks

Find the value of $8000 after 5 years at 2.4% compound interest, to the nearest dollar.

  1. 18000 × (1 + 2.4/100)⁵ = 8000 × 1.024⁵
  2. 2= 9007.19…
  3. 3= $9007

Answer9007

Part (e) · 3 marks

Split $12 000 in the ratio 8 : 4 : 3 and state each person's amount.

  1. 1One part = 12 000 ÷ (8 + 4 + 3) = 12 000 ÷ 15 = 800
  2. 2Pierre = 8 × 800 = $6400, Luigi = 4 × 800 = $3200, Freda = 3 × 800 = $2400

AnswerPierre $6400, Luigi $3200, Freda $2400

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Also searched as: 0580/33/O/N/21 · 0580_w21_qp_33 · 0580 w21 33 · question 2.
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