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

varies inversely as the square root of .

When .

Find in terms of .

is directly proportional to .
When , .  

Find  in terms of .  

....................................................

is inversely proportional to .
When , .  

Find  in terms of .  

................................................

 is directly proportional to .
When .

Find when .

................................................

The table below shows the time, hours, it takes a car to travel a certain distance at different speeds, miles per hour.

State what type of variation model would be suitable for this data.

Find an equation for in terms of .

Find the value of .

State the total distance that the car has driven.

Use the model to calculate the speed if a car takes 30 minutes to complete the journey.

Give a reason why using the model to answer part (e) is not suitable.

varies inversely with the square of .
When 
Find when .

..................................................

is inversely proportional to the square root of .
When .

Find  when .  

= ............................................

is inversely proportional to 
When , .

Find  when .  

.................................................

varies inversely with the square of .
When , .

Find  when .

= ...............................................