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Used for LANTITE preparation (Australia). NC = Non Calculator strand. NA = Number & Algebra strand. Students are given the number of people that are fed with 200g of rice (randomised), and the total number of people to be fed (randomised). They need to calculate the weight of rice using proportional reasoning.

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Mr Sims teaches Year 6. His class is responsible for cooking the rice for a Multicultural Day banquet. They need to cook the right amount of rice for {num_people} people.

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One cup of uncooked rice weighs 200 g and will serve {per_cup} people.

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One cup of uncooked rice will serve {per_cup} people, and there are {num_people} people to be served.

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Dividing {num_people} by {per_cup} will give the number of cups of rice required.

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{num_people} ÷ {per_cup} = {(num_people)/(per_cup)}

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So they will need {(num_people)/(per_cup)} cups of uncooked rice.

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Each cup of uncooked rice weighs 200 grams. So every 5 cups of uncooked rice will weigh 1 kilogram (or 1000 grams).

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5 cups of uncooked rice weigh 1 kilogram.

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{(num_people)/(per_cup)} cups of uncooked rice weigh {kilos} kilograms. (Scale up by a factor of {kilos})

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They will need {kilos} kilograms of uncooked rice to feed {num_people} people.

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This is the total number of people to be fed. It is stated in the question, but calculated by multiplying the number of people fed per cup by the the number of kilograms of rice then by 5 to convert from 200grams to kg.

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This is the number of people fed per uncooked cup. It is stated in the question.

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The number of kilograms of rice required. This is the answer.

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How many kilograms of uncooked rice will they need? Just enter the number, not the kg symbol. 

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