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2 marksRatio and Proportion

CSEC Mathematics · May/June 2007 · Paper 2 · Question 1(b)

A school has 1200 students. The ratio of teachers to students is 1:30. Two-fifths of the students own personal computers. Thirty percent of the students who own personal computers also own play stations.

How many teachers are there at the school?

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Other parts of this question

  1. 1(a)Using a calculator, or otherwise, determine the exact value of (3.7)² – (6.24 + 1.3).[3 marks]
  2. 1(b)(ii)How many students do NOT own personal computers?[2 marks]
  3. 1(b)(iii)What fraction of the students in the school own play stations? Express your answer in its lowest terms.[4 marks]

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