// Numbas version: finer_feedback_settings
{"name": "Cost for a journey", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "ungrouped_variables": ["distancemiles", "mpg", "costperlitre", "totalcost", "litrespergallon"], "name": "Cost for a journey", "tags": [], "preamble": {"css": "", "js": ""}, "advice": "<p>See step.</p>", "rulesets": {}, "parts": [{"stepsPenalty": 0, "prompt": "<p>You're planning a trip with a group of friends.&nbsp; How much will it cost (to the nearest pound) if:</p>\n      <ul>\n      <li>The round trip will be $\\var{distanceMiles}$ miles.<br/><br/></li>\n      <li>Your average fuel consumption is $\\var{mpg}$ miles per gallon.<br/><br/></li>\n      <li>Petrol costs &pound;$\\var{costPerLitre}$ per litre.<br/><br/></li>\n      <li>1 gallon is $\\var{litresPerGallon}$ litres.<br/><br/></li>\n      </ul>\n      <p>Answer: total cost is &pound; [[0]] (to the nearest pound)</p>", "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "steps": [{"prompt": "<p>Driving {distanceMiles} miles at {mpg} miles per gallon will use:&nbsp; $\\frac {\\var{distanceMiles}} {\\var{mpg}}$&nbsp; gallons.</p>\n<p>If&nbsp; 1&nbsp; gallon&nbsp; =&nbsp; {litresPerGallon}&nbsp; litres,&nbsp; that&nbsp; will&nbsp; use&nbsp; $\\frac {\\var{distanceMiles}\\times \\var{litresPerGallon}} { \\var{mpg}}$&nbsp; litres.</p>\n<p>And&nbsp; if&nbsp; 1&nbsp; litre&nbsp; costs&nbsp; &pound;{costPerLitre},&nbsp; that&nbsp; will&nbsp; cost&nbsp; &pound;$\\frac {\\var{distanceMiles}\\times \\var{litresPerGallon}\\times \\var{costPerLitre}} { \\var{mpg}}$.</p>\n<p>Round&nbsp; your&nbsp; answer&nbsp; to&nbsp; the&nbsp; nearest&nbsp; pound.</p>\n<p></p>", "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "showCorrectAnswer": true, "scripts": {}, "marks": 0, "type": "information"}], "gaps": [{"integerPartialCredit": 0, "integerAnswer": true, "allowFractions": false, "variableReplacements": [], "maxValue": "{totalCost}", "minValue": "{totalCost}", "variableReplacementStrategy": "originalfirst", "correctAnswerFraction": false, "showCorrectAnswer": true, "scripts": {}, "marks": 1, "type": "numberentry", "showPrecisionHint": false}], "showCorrectAnswer": true, "scripts": {}, "marks": 0, "type": "gapfill"}], "extensions": [], "statement": "<p>Practice of a type of QTS question.</p>", "variable_groups": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "variables": {"distancemiles": {"definition": "random(2..5)*30", "templateType": "anything", "group": "Ungrouped variables", "name": "distancemiles", "description": ""}, "mpg": {"definition": "random(4..10)*5", "templateType": "anything", "group": "Ungrouped variables", "name": "mpg", "description": ""}, "costperlitre": {"definition": "random(1..99)*0.01+1", "templateType": "anything", "group": "Ungrouped variables", "name": "costperlitre", "description": ""}, "totalcost": {"definition": "precround(distanceMiles*litresPerGallon*costPerLitre/mpg,0)", "templateType": "anything", "group": "Ungrouped variables", "name": "totalcost", "description": ""}, "litrespergallon": {"definition": "4.546", "templateType": "anything", "group": "Ungrouped variables", "name": "litrespergallon", "description": ""}}, "metadata": {"description": "<p>Basic calculation exercise using distance, mpg and cost per litre (with the conversion factor for gallons to litres given).</p>\n<p><br />Based on a generic test QTS question.</p>", "licence": "Creative Commons Attribution 4.0 International"}, "type": "question", "showQuestionGroupNames": false, "question_groups": [{"name": "", "pickingStrategy": "all-ordered", "pickQuestions": 0, "questions": []}], "contributors": [{"name": "Rob Cade", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/70/"}]}]}], "contributors": [{"name": "Rob Cade", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/70/"}]}