// Numbas version: finer_feedback_settings
{"name": "Instrument Design 1", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "ungrouped_variables": [], "name": "Instrument Design 1", "tags": ["check", "rebelmaths"], "preamble": {"css": "", "js": ""}, "advice": "<p>Use the formula x_n=L*(1-0.5^(n/12)), where n is the fret in question, with n=0 at&nbsp;the nut, x_n is the distance from the n^th fret to the nut and L is the scale length.</p>", "rulesets": {}, "parts": [{"precisionType": "dp", "precisionMessage": "You have not given your answer to the correct precision.", "allowFractions": false, "variableReplacements": [], "maxValue": "359.2", "strictPrecision": true, "minValue": "359.2", "variableReplacementStrategy": "originalfirst", "precisionPartialCredit": 0, "correctAnswerFraction": false, "showCorrectAnswer": true, "precision": "1", "scripts": {}, "marks": "2", "showPrecisionHint": false, "type": "numberentry"}], "extensions": [], "statement": "<p>The scale length of a standard Fender Stratocaster is 647.7 mm. At what distance from the nut should the 14th fret be placed if equal temperament is used? Give your answer correct to one decimal place.</p>", "variable_groups": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "variables": {}, "metadata": {"description": "<p>rebelmaths&nbsp;</p>\n<p>Position of a fret on a fretboard relative to the nut.</p>", "licence": "Creative Commons Attribution 4.0 International"}, "type": "question", "showQuestionGroupNames": false, "question_groups": [{"name": "", "pickingStrategy": "all-ordered", "pickQuestions": 0, "questions": []}], "contributors": [{"name": "Clodagh Carroll", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/384/"}]}]}], "contributors": [{"name": "Clodagh Carroll", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/384/"}]}