O LevelMathsCambridgeTopic QuestionsAlgebra & SequencesProportion

Proportion (Cambridge O Level Maths)

Topic Questions

1

2 marks

$y$ is inversely proportional to the square root of $x$ .
When $y = 7$ , $x = 2.25$ .

Write $y$ in terms of $x$ .

$y =$ ................................................

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1

3 marks

$y$ is inversely proportional to $x^{2}$ .
When $x = 4$ , $y = 7.5$ .

Find $y$ when $x = 5$ .

$y =$ .................................................

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1

3 marks

$y$ is directly proportional to the cube root of $(x + 3)$ .
When $x = 5, y = \frac{2}{3}$ .

Find $y$ when $x = 24$ .

$y =$ ................................................

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