// Numbas version: finer_feedback_settings
{"name": "6", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"parts": [{"minMarks": 0, "type": "1_n_2", "customMarkingAlgorithm": "", "variableReplacements": [], "maxMarks": 0, "displayType": "radiogroup", "scripts": {}, "extendBaseMarkingAlgorithm": true, "variableReplacementStrategy": "originalfirst", "showCorrectAnswer": false, "shuffleChoices": true, "showFeedbackIcon": false, "choices": ["$7str + 3ts + 2rt$", "$-7rst + 10st - 5rt$", "$3rst - 10str +10st - 5rt$", "$-10str + 11ts + 5rt$"], "steps": [{"unitTests": [], "type": "information", "marks": 0, "variableReplacements": [], "showCorrectAnswer": true, "extendBaseMarkingAlgorithm": true, "variableReplacementStrategy": "originalfirst", "scripts": {}, "customMarkingAlgorithm": "", "prompt": "<p>Variables can be written in any order... i.e. $rst$ is the same as $tsr$</p>", "showFeedbackIcon": true}], "marks": 0, "unitTests": [], "distractors": ["", "", "", ""], "displayColumns": 0, "stepsPenalty": "0.5", "matrix": [0, "1", 0, 0]}], "functions": {}, "preamble": {"css": "", "js": ""}, "ungrouped_variables": [], "name": "6", "advice": "<p>Transpose the formula to make L the subject. Substitute in the given values to calculate L.&nbsp;</p>", "variables": {}, "tags": [], "statement": "<p>Simplify the following by collecting like terms.</p>\n<p>\\[3rst - 10str + 8ts - 5rt + 2st\\]</p>\n<p>Select the correct answer.</p>", "extensions": [], "rulesets": {}, "metadata": {"licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International", "description": "<p>Collecting like terms</p>"}, "variablesTest": {"condition": "", "maxRuns": 100}, "variable_groups": [], "type": "question", "contributors": [{"name": "Ian Loasby", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/890/"}, {"name": "Heather Driscoll", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/1703/"}], "resources": []}]}], "contributors": [{"name": "Ian Loasby", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/890/"}, {"name": "Heather Driscoll", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/1703/"}]}