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Used for LANTITE preparation (Australia). NA = Number & Algebra strand. Students need to calculate the proportion of calls for one given emergency, after reading the number of calls, and total number of calls from the supplied infographic. There are 4 different versions of this question.

", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "statement": "
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The National Emergency Call Centre was established by the Australian Government in July 2006 to serve as a first point of contact for Australians in the event of an emergency or disaster of national significance. It provides a coordinated whole of government response to the delivery and gathering of information.

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The infographic below shows the number of calls taken for four of the biggest emergencies in the first five years of the centre's operation.

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http://mediahub.humanservices.gov.au/news/emergency-call-centre-celebrates-10-years/

", "advice": "
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There were {fullnumcalls} calls received regarding {incident}.

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The infographic shows 410 000 calls in total.

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We need to find what percentage {fullnumcalls} is of 410 000.

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Divide {fullnumcalls} by 410 000, then multiply by 100%.

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{fullnumcalls} ÷ 410 000 x 100% = {precround(numcalls/410*100,4)}...%.

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This should be rounded to the nearest whole number.

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{precround({numcalls/410*100},0)}% of the calls shown were about {incident}.

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The name of the randomly selected incident.

", "templateType": "anything", "can_override": false}, "incidents": {"name": "incidents", "group": "Ungrouped variables", "definition": "['the Victorian bushfires','Cyclone Yasi','the North Queensland floods','the Hunter Floods']", "description": "
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The list of the four incidents.

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The index to both the incident and calls lists.

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The number of calls divided by 1000, for the randomly selected incident.

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The number of calls (divided by 1000) for each corresponding incident

", "templateType": "anything", "can_override": false}, "fullnumcalls": {"name": "fullnumcalls", "group": "Ungrouped variables", "definition": "formatnumber(numcalls*1000,'si-en')", "description": "

The actual number of calls for the randomly selected incident, in spaced format. This variable cannot be used in calculations as it is a string. It is used in the Advice section.

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What proportion of these four emergencies were the calls about {incident}?

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