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O-LevelMathematicsNumber4024/11 · May/June 2020 · Q133 Marks

During 2018, the population of a village increased from 200 to 250. Calculate the percentage increase in population.

  1. (a)During 2018, the population of a village increased from 200 to 250. Calculate the percentage increase in population.[1]
  2. (b)The length of a rectangle is increased by 10%. The width of the same rectangle is decreased by 10%. Find the area of the new rectangle as a percentage of the area of the original rectangle.[2]

Mark scheme

Marking points from the official mark scheme (May/June 2020). The mark or mark type is shown in brackets.

  1. [1] 25
  2. [2] 99
  3. [2] M1 for use of 1.1 or 0.9 oe soi

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About this question

Topic
Number, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, May/June 2020 Paper 1 Variant 1, question 13.

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