// Numbas version: finer_feedback_settings {"name": "Q3 Ratios", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "ungrouped_variables": ["numberone", "numbertwo", "ans", "lent", "width", "area", "numberthree", "numberthreea", "numberfour", "numberfoura", "numberfive", "numberfivea", "numberfiveb", "ansone", "anstwo", "ansthree", "num1", "num2", "num3", "a1", "a2", "a3"], "name": "Q3 Ratios", "tags": ["ratio", "rebelmaths", "teame"], "preamble": {"css": "", "js": ""}, "advice": "
\nPart 1:
\nAdd the three ratios together, which gives $15$
\nTherefore $1$ is equal to $\\frac{180}{15}$degrees (12degrees)
\nMultiply each ratio by 18 to find the value of each angle in degrees
\n$12 \\times \\var{num1}$
\n$12 \\times \\var{num2}$
\n$12 \\times \\var{num3}$
\n\nPart 2:
\nAdd the three ratios together, which gives $10$
\nTherefore $1$ is equal to $\\frac{180}{10}$degrees (18degrees)
\nMultiply each ratio by 18 to find the value of each angle in degrees
\n$18 \\times \\var{numberthree}\\frac{1}{\\var{numberthreea}}$
\n$18 \\times \\var{numberfour}\\frac{1}{\\var{numberfoura}}$
\n$18 \\times \\var{numberfive}\\frac{\\var{numberfiveb}}{\\var{numberfivea}}$
\n\n", "rulesets": {}, "parts": [{"stepsPenalty": 0, "prompt": "
If the angles of a triangle are in the ratio $\\var{num1}:\\var{num2}:\\var{num3}$.
\n\nFind the angles in degrees.
\n[[0]]degrees
\n[[1]]degrees
\n[[2]]degrees
", "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "steps": [{"prompt": "There are 180 degrees in a triangle.
", "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "showCorrectAnswer": true, "scripts": {}, "marks": 0, "type": "information"}], "gaps": [{"allowFractions": false, "variableReplacements": [], "maxValue": "{a1}", "minValue": "{a1}", "variableReplacementStrategy": "originalfirst", "correctAnswerFraction": false, "showCorrectAnswer": true, "scripts": {}, "marks": 1, "type": "numberentry", "showPrecisionHint": false}, {"allowFractions": false, "variableReplacements": [], "maxValue": "{a2}", "minValue": "{a2}", "variableReplacementStrategy": "originalfirst", "correctAnswerFraction": false, "showCorrectAnswer": true, "scripts": {}, "marks": 1, "type": "numberentry", "showPrecisionHint": false}, {"allowFractions": false, "variableReplacements": [], "maxValue": "{a3}", "minValue": "{a3}", "variableReplacementStrategy": "originalfirst", "correctAnswerFraction": false, "showCorrectAnswer": true, "scripts": {}, "marks": 1, "type": "numberentry", "showPrecisionHint": false}], "showCorrectAnswer": true, "scripts": {}, "marks": 0, "type": "gapfill"}, {"stepsPenalty": 0, "prompt": "If the angles of a triangle are in the ratio $\\var{numberthree}\\frac{1}{\\var{numberthreea}}:\\var{numberfour}\\frac{1}{\\var{numberfoura}}:\\var{numberfive}\\simplify{{numberfiveb}/{numberfivea}}$.
\n\nFind the angles in degrees.
\n[[0]]degrees
\n[[1]]degrees
\n[[2]]degrees
", "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "steps": [{"prompt": "Convert the fraction into top heavy fractions. Simplify this ratio into integers like in Q1 (c). Now continue as in part (a) above.
\nOr, alternatively add the fractions in fraction form.
", "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "showCorrectAnswer": true, "scripts": {}, "marks": 0, "type": "information"}], "gaps": [{"precisionType": "dp", "precisionMessage": "You have not given your answer to the correct precision.", "allowFractions": false, "variableReplacements": [], "maxValue": "{ansone}", "strictPrecision": false, "minValue": "{ansone}", "variableReplacementStrategy": "originalfirst", "precisionPartialCredit": 0, "correctAnswerFraction": false, "showCorrectAnswer": true, "precision": "2", "scripts": {}, "marks": 1, "type": "numberentry", "showPrecisionHint": false}, {"precisionType": "dp", "precisionMessage": "You have not given your answer to the correct precision.", "allowFractions": false, "variableReplacements": [], "maxValue": "{anstwo}", "strictPrecision": false, "minValue": "{anstwo}", "variableReplacementStrategy": "originalfirst", "precisionPartialCredit": 0, "correctAnswerFraction": false, "showCorrectAnswer": true, "precision": "2", "scripts": {}, "marks": 1, "type": "numberentry", "showPrecisionHint": false}, {"precisionType": "dp", "precisionMessage": "You have not given your answer to the correct precision.", "allowFractions": false, "variableReplacements": [], "maxValue": "{ansthree}", "strictPrecision": false, "minValue": "{ansthree}", "variableReplacementStrategy": "originalfirst", "precisionPartialCredit": 0, "correctAnswerFraction": false, "showCorrectAnswer": true, "precision": "2", "scripts": {}, "marks": 1, "type": "numberentry", "showPrecisionHint": false}], "showCorrectAnswer": true, "scripts": {}, "marks": 0, "type": "gapfill"}], "extensions": [], "statement": "Solve the following shape questions, correct to 2 decimal places.
\n", "variable_groups": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "variables": {"num1": {"definition": "random(2..6)", "templateType": "anything", "group": "Ungrouped variables", "name": "num1", "description": ""}, "num2": {"definition": "7", "templateType": "anything", "group": "Ungrouped variables", "name": "num2", "description": ""}, "num3": {"definition": "15-(num1+num2)", "templateType": "anything", "group": "Ungrouped variables", "name": "num3", "description": ""}, "numberfivea": {"definition": "{numberthreea}*{numberfoura}", "templateType": "anything", "group": "Ungrouped variables", "name": "numberfivea", "description": ""}, "ans": {"definition": "({area}-1)*100", "templateType": "anything", "group": "Ungrouped variables", "name": "ans", "description": ""}, "numberone": {"definition": "random(2..25)", "templateType": "anything", "group": "Ungrouped variables", "name": "numberone", "description": ""}, "anstwo": {"definition": "18*({numberfour} + (1/{numberfoura}))", "templateType": "anything", "group": "Ungrouped variables", "name": "anstwo", "description": ""}, "ansone": {"definition": "18*({numberthree} + (1/{numberthreea}))", "templateType": "anything", "group": "Ungrouped variables", "name": "ansone", "description": ""}, "area": {"definition": "lent*width", "templateType": "anything", "group": "Ungrouped variables", "name": "area", "description": ""}, "numberfour": {"definition": "random(2..4 except {numberthree})", "templateType": "anything", "group": "Ungrouped variables", "name": "numberfour", "description": ""}, "numberthree": {"definition": "random(2..4)", "templateType": "anything", "group": "Ungrouped variables", "name": "numberthree", "description": ""}, "width": {"definition": "1-{numbertwo}/100", "templateType": "anything", "group": "Ungrouped variables", "name": "width", "description": ""}, "numberfiveb": {"definition": "{numberfivea}-({numberthreea}+{numberfoura})", "templateType": "anything", "group": "Ungrouped variables", "name": "numberfiveb", "description": ""}, "numberthreea": {"definition": "random(2..8)", "templateType": "anything", "group": "Ungrouped variables", "name": "numberthreea", "description": ""}, "numberfoura": {"definition": "random(2..8 except {numberthreea})", "templateType": "anything", "group": "Ungrouped variables", "name": "numberfoura", "description": ""}, "a1": {"definition": "12*num1", "templateType": "anything", "group": "Ungrouped variables", "name": "a1", "description": ""}, "a3": {"definition": "12*num3", "templateType": "anything", "group": "Ungrouped variables", "name": "a3", "description": ""}, "a2": {"definition": "12*num2", "templateType": "anything", "group": "Ungrouped variables", "name": "a2", "description": ""}, "lent": {"definition": "1+{numberone}/100", "templateType": "anything", "group": "Ungrouped variables", "name": "lent", "description": ""}, "ansthree": {"definition": "18*({numberfive} + ({numberfiveb}/{numberfivea}))", "templateType": "anything", "group": "Ungrouped variables", "name": "ansthree", "description": ""}, "numberfive": {"definition": "random(2..4 except {numberthree} except {numberfour})", "templateType": "anything", "group": "Ungrouped variables", "name": "numberfive", "description": ""}, "numbertwo": {"definition": "random(2..25 except {numberone})", "templateType": "anything", "group": "Ungrouped variables", "name": "numbertwo", "description": ""}}, "metadata": {"description": "Ratio Questions
\nrebel
\nrebelmaths
", "licence": "Creative Commons Attribution 4.0 International"}, "type": "question", "showQuestionGroupNames": false, "question_groups": [{"name": "", "pickingStrategy": "all-ordered", "pickQuestions": 0, "questions": []}], "contributors": [{"name": "TEAME CIT", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/591/"}]}]}], "contributors": [{"name": "TEAME CIT", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/591/"}]}