CAIE IGCSE Mathematics Core Common Measures of Rate

Practise converting speeds and flow rates and applying hourly, per-kilometre or other unit rates to calculate totals and durations.

Syllabus
2028–2030
Objective
C1.12.1
Level
Core

Exam points

  • convert speed between m/s, m/min and km/h by changing both distance and time units
  • apply an hourly or per-unit charge to find a total, or reverse the rate to find time
  • compare price per kilometre or another unit rate by dividing each total consistently

C1.12.1 Use common measures of rate. question 1

[Maximum number: 3]

A family go on a skiing holiday to America.

A ski lift, when full, takes 4000 passengers per hour.

This lift works for 10 hours a day.
One day, this lift is 90% full for 3 hours and 75% full for 7 hours.
Work out the number of passengers who take the lift that day.

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