// Numbas version: exam_results_page_options {"name": "Lois's copy of Percentages - Quick Percentages", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "ungrouped_variables": ["a", "b", "c", "d", "g", "f", "h", "j"], "name": "Lois's copy of Percentages - Quick Percentages", "tags": [], "preamble": {"css": "", "js": ""}, "advice": "

When calculating percentages without a calculator it can be useful to calculate 1% ( $=\\frac{1}{100}$) or 10% ($=\\frac{1}{10}$) of the amount first.

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You can then find 5% for instance by finding half of 10%.

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You can then combine these amounts to get the required total.

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 $\\var{a}\\text{%}$ of $\\var{b}$.

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$\\var{c}\\text{%}$ of $\\var{d}$.

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 $\\var{g}\\text{%}$ of $\\var{f}$.

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$\\var{h}\\text{%}$ of $\\var{j}$.

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Find the following amounts.

", "variable_groups": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "variables": {"a": {"definition": "random(5..95#5 ) //a multiple of 5%", "templateType": "anything", "group": "Ungrouped variables", "name": "a", "description": ""}, "c": {"definition": "random(5..90#5 except 0) //a multiple of 5%", "templateType": "anything", "group": "Ungrouped variables", "name": "c", "description": ""}, "b": {"definition": "random(200..900#20) //a multiple of 20 betwen 200 and 900", "templateType": "anything", "group": "Ungrouped variables", "name": "b", "description": ""}, "d": {"definition": "random(120..800#20) //a multiple of 20 betwen 120 and 800", "templateType": "anything", "group": "Ungrouped variables", "name": "d", "description": ""}, "g": {"definition": "random(5..70#5 except 0) //a multiple of 5%", "templateType": "anything", "group": "Ungrouped variables", "name": "g", "description": ""}, "f": {"definition": "random(300..500#20) //a multiple of 20 betwen 300 and 500", "templateType": "anything", "group": "Ungrouped variables", "name": "f", "description": ""}, "h": {"definition": "random(1..99) //select a random percentage", "templateType": "anything", "group": "Ungrouped variables", "name": "h", "description": ""}, "j": {"definition": "random(200..800#50)", "templateType": "anything", "group": "Ungrouped variables", "name": "j", "description": ""}}, "metadata": {"description": "

These questions are asking you to use a non-calculator method to work out a percentage amount of a value.

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