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O-LevelMathematicsNumber4024/11 · Oct/Nov 2019 · Q53 Marks

A television programme is 2 hours 40 minutes long.

  1. (a)It starts at 2245. At what time does it finish?[1]
  2. (b)The programme contains 8 advertisement breaks, each of which lasts for 3 minutes. Find the fraction of the 2 hours 40 minutes that is taken by advertisements. Give your answer in its simplest form.[2]

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2019). The mark or mark type is shown in brackets.

  1. [1] 01 25 or 1.25am
  2. [2] 3/20 cao
  3. M1 for 8x3 / (2x60+40) oe
  4. If 0 scored, then SC1 for a final answer of 1/10 from 24/240 seen or 3/160 or 17/20

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About this question

Topic
Number, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, Oct/Nov 2019 Paper 1 Variant 1, question 5.

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