// Numbas version: exam_results_page_options
{"name": "Scaling up ratios", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"metadata": {"licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International", "description": "<p>Scaling up ratios.</p>"}, "variable_groups": [], "tags": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "preamble": {"js": "", "css": ""}, "name": "Scaling up ratios", "rulesets": {}, "statement": "<p>There are {axbx} people at a wedding, with adults to children in a ratio of {a}:{b}.</p>", "functions": {}, "extensions": [], "ungrouped_variables": ["a", "b", "x", "ax", "bx", "axbx", "c", "d", "y", "cy", "dy", "cydy"], "parts": [{"variableReplacementStrategy": "originalfirst", "mustBeReducedPC": 0, "correctAnswerFraction": false, "prompt": "<p>How many adults are there?</p>", "mustBeReduced": false, "allowFractions": false, "notationStyles": ["plain", "en", "si-en"], "type": "numberentry", "scripts": {}, "showFeedbackIcon": true, "maxValue": "{ax}", "variableReplacements": [], "correctAnswerStyle": "plain", "showCorrectAnswer": true, "marks": 1, "minValue": "{ax}"}, {"variableReplacementStrategy": "originalfirst", "mustBeReducedPC": 0, "correctAnswerFraction": false, "prompt": "<p>How many children are there?</p>", "mustBeReduced": false, "allowFractions": false, "notationStyles": ["plain", "en", "si-en"], "type": "numberentry", "scripts": {}, "showFeedbackIcon": true, "maxValue": "{bx}", "variableReplacements": [], "correctAnswerStyle": "plain", "showCorrectAnswer": true, "marks": 1, "minValue": "{bx}"}], "variables": {"a": {"name": "a", "group": "Ungrouped variables", "definition": "random(1..6)", "templateType": "anything", "description": ""}, "ax": {"name": "ax", "group": "Ungrouped variables", "definition": "a*x", "templateType": "anything", "description": ""}, "x": {"name": "x", "group": "Ungrouped variables", "definition": "random(2..10)", "templateType": "anything", "description": ""}, "bx": {"name": "bx", "group": "Ungrouped variables", "definition": "b*x", "templateType": "anything", "description": ""}, "cydy": {"name": "cydy", "group": "Ungrouped variables", "definition": "cy+dy", "templateType": "anything", "description": ""}, "dy": {"name": "dy", "group": "Ungrouped variables", "definition": "d*y", "templateType": "anything", "description": ""}, "b": {"name": "b", "group": "Ungrouped variables", "definition": "random(1..6)", "templateType": "anything", "description": ""}, "y": {"name": "y", "group": "Ungrouped variables", "definition": "random(2..10)", "templateType": "anything", "description": ""}, "d": {"name": "d", "group": "Ungrouped variables", "definition": "random(1..6)", "templateType": "anything", "description": ""}, "c": {"name": "c", "group": "Ungrouped variables", "definition": "random(1..6)", "templateType": "anything", "description": ""}, "axbx": {"name": "axbx", "group": "Ungrouped variables", "definition": "ax+bx", "templateType": "anything", "description": ""}, "cy": {"name": "cy", "group": "Ungrouped variables", "definition": "c*y", "templateType": "anything", "description": ""}}, "advice": "<p>Remember:</p>\n<p>Add the two parts of the ratio together to give the total number of parts.</p>\n<p>Divide the number of people at the wedding by the total number of parts.</p>\n<p>Multiply this by each \"side\" of the ratio to give the actual number of adults and children that are present at the wedding.</p>", "type": "question", "contributors": [{"name": "Rachel Staddon", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/901/"}]}]}], "contributors": [{"name": "Rachel Staddon", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/901/"}]}