// Numbas version: exam_results_page_options
{"name": "Equivalent ratios", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"tags": [], "preamble": {"js": "", "css": ""}, "rulesets": {}, "ungrouped_variables": ["a", "b", "c", "d", "x", "y", "ax", "bx", "cy", "dy", "z", "f", "g", "cx", "dx", "h", "j"], "advice": "<p>Remember that equivalent ratios work like equivalent fractions. If you can multiply both sides of the ratio by the same number to give one of the other ratios, those two are equivalent.</p>\n<p>If you prefer to think about it this way:</p>\n<p>where a, b, and n are any numbers, a:b is equivalent to a x n: b x n</p>", "metadata": {"licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International", "description": "<p>Identifying equivalent ratios</p>"}, "name": "Equivalent ratios", "extensions": [], "parts": [{"distractors": ["", "", "", "", ""], "minMarks": 0, "choices": ["<p>{a}:{b}</p>", "<p>{ax}:{bx}</p>", "<p>{c}:{d}</p>", "<p>{f}:{g}</p>", "<p>{h}:{j}</p>"], "type": "m_n_2", "showCorrectAnswer": true, "displayType": "checkbox", "variableReplacementStrategy": "originalfirst", "marks": 0, "scripts": {}, "minAnswers": 0, "displayColumns": 0, "maxAnswers": 0, "maxMarks": 0, "showFeedbackIcon": true, "matrix": ["1", "1", 0, 0, 0], "shuffleChoices": true, "variableReplacements": [], "warningType": "none"}], "statement": "<p>Choose the ratios that are equivalent:</p>", "variablesTest": {"condition": "", "maxRuns": 100}, "variables": {"y": {"definition": "random(2..10 except [x,z])", "description": "", "group": "Ungrouped variables", "name": "y", "templateType": "anything"}, "ax": {"definition": "a*x", "description": "", "group": "Ungrouped variables", "name": "ax", "templateType": "anything"}, "dy": {"definition": "d*y", "description": "", "group": "Ungrouped variables", "name": "dy", "templateType": "anything"}, "h": {"definition": "random(1..20 except [a,b,c,d,f,g,ax,bx])", "description": "", "group": "Ungrouped variables", "name": "h", "templateType": "anything"}, "cy": {"definition": "c*y", "description": "", "group": "Ungrouped variables", "name": "cy", "templateType": "anything"}, "g": {"definition": "random(1..20 except [a,b,c,d,ax,bx])", "description": "", "group": "Ungrouped variables", "name": "g", "templateType": "anything"}, "c": {"definition": "random(1..10 except [a,b,ax,bx])", "description": "", "group": "Ungrouped variables", "name": "c", "templateType": "anything"}, "f": {"definition": "random(1..20 except [a,b,c,d,g,ax,bx])", "description": "", "group": "Ungrouped variables", "name": "f", "templateType": "anything"}, "dx": {"definition": "d*x", "description": "", "group": "Ungrouped variables", "name": "dx", "templateType": "anything"}, "a": {"definition": "random(1..10)", "description": "", "group": "Ungrouped variables", "name": "a", "templateType": "anything"}, "x": {"definition": "random(1..5)", "description": "", "group": "Ungrouped variables", "name": "x", "templateType": "anything"}, "bx": {"definition": "b*x", "description": "", "group": "Ungrouped variables", "name": "bx", "templateType": "anything"}, "cx": {"definition": "c*x", "description": "", "group": "Ungrouped variables", "name": "cx", "templateType": "anything"}, "b": {"definition": "random(1..10)", "description": "", "group": "Ungrouped variables", "name": "b", "templateType": "anything"}, "j": {"definition": "random(1..20 except [a,b,c,d,f,g,h,ax,bx])", "description": "", "group": "Ungrouped variables", "name": "j", "templateType": "anything"}, "d": {"definition": "random(1..10 except [a,b,ax,bx])", "description": "", "group": "Ungrouped variables", "name": "d", "templateType": "anything"}, "z": {"definition": "random(1..10 except [x])", "description": "", "group": "Ungrouped variables", "name": "z", "templateType": "anything"}}, "variable_groups": [], "functions": {}, "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/"}]}