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HigherCalculatorS4 Averages

Question 1 · 3 marks

Spec and skills
  • Paper scope: Papers 2/3: calculator practice
  • Spec S4
  • Spec S2
  • Original practice question
  • Answer and supported method checks
The mean mass of 18 parcels is 42 kg. The mean mass of another 12 parcels is 37 kg. Work out the mean mass of all 30 parcels.
kg