Ratio, SM-Bank 040

Paul stacks milk cartons into supermarket refrigerator shelves.

Each shelf is stacked with 6 full cream milk cartons, 4 lite milk cartons and 2 skim milk cartons.

Every hour Paul stacks 240 milk cartons in total.

How many lite milk cartons does he stack every hour? (2 marks)

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\(80\)

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\(\text{Total Cartons per shelf}=6+4+2=12\)

\(\text{Fraction of lite}=\dfrac{4}{12}=\dfrac{1}{3}\)

\(\text{Total lite per hour}=\dfrac{1}{3}\times 240=80\)