Disposal of addition polymers
2 marks · EasyA country produces 1,500,000 tonnes of plastic waste each year. If 60% of it is made of addition polymers, calculate the mass of addition polymer waste produced per year. Give your answer in tonnes.
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900,000 tonnes (±1000)
Common mistakes: Calculating 60% of 100,000 not 1,500,000; Incorrect percentage arithmetic
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Marking points
M1 · 1 mark · Shows or correctly calculates 60% of 1,500,000. (follow-through)
A1 · 1 mark · Writes final answer as 900,000 tonnes.
Worked solution
60% of 1,500,000 = 0.60 × 1,500,000 = 900,000 tonnes.