IGCSEMathsCambridge (CIE)ExtendedExam QuestionsAlgebra & SequencesProportion

Proportion (Cambridge (CIE) IGCSE Maths: Extended): Exam Questions

Exam code: 0580 & 0980

58 mins20 questions

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Proportion

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1
Sme Calculator3 marks

y space proportional to space fraction numerator 1 over denominator square root of x end fraction

When space y space equals space 8 comma space x space equals space 4. space
Find y space when space x space equals space 49.

y = .........................

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2
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y is directly proportional to the square root of x.
When x equals 9, y equals 6.  

Find y when x equals 25.  

y = ...............................................

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3
Sme Calculator3 marks

y is inversely proportional to x.
When x equals 9, y equals 8.

Find y when x equals 6.

y = ............................................

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1
Sme Calculator2 marks

y is directly proportional to left parenthesis x minus 4 right parenthesis.
When x equals 16, y equals 3.  

Find y in terms of x.  

y equals....................................................

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2
Sme Calculator2 marks

y is inversely proportional to x cubed.
When x equals 2, y equals 0.5.  

Find y in terms of x.  

y equals ................................................

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3
Sme Calculator3 marks

y is directly proportional to left parenthesis x minus 1 right parenthesis squared.
When x equals 3 comma space y equals 24.

Find y when x equals 6.

y equals................................................

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4
Sme Calculator3 marks

x is proportional to square root of y.

y is increased by 21 percent sign.

Work out the percentage increase in x.

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1
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m is inversely proportional to the square of open parentheses p minus 1 close parentheses.
When p equals 4 comma space m equals 5.
Find m when p equals 6.

m equals ..................................................

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2
Sme Calculator3 marks

y is inversely proportional to the square root of left parenthesis x plus 1 right parenthesis.
When x equals 8 comma space y equals 2.

Find y when x equals 99.  

y= ............................................

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3
Sme Calculator3 marks

y is inversely proportional to open parentheses x plus 3 close parentheses squared
When x equals 2, y equals 8.

Find y when x equals 7.  

y equals.................................................

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4
Sme Calculator3 marks

y is inversely proportional to the square of left parenthesis x plus 2 right parenthesis.
When x equals 3, y equals 2.

Find y when x equals 8.

y = ...............................................

How did you do?