// Numbas version: exam_results_page_options
{"name": "Pay during discount period or not", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"parts": [{"showCellAnswerState": true, "distractors": ["", ""], "customMarkingAlgorithm": "", "customName": "", "showFeedbackIcon": true, "marks": 0, "unitTests": [], "displayColumns": "1", "displayType": "radiogroup", "useCustomName": false, "type": "1_n_2", "maxMarks": 0, "showCorrectAnswer": true, "matrix": ["yesborrow", "no"], "variableReplacements": [], "scripts": {}, "extendBaseMarkingAlgorithm": true, "prompt": "<p>Suppose the opportunity cost of not paying an invoice within a&nbsp;discount period is $\\var{OC}\\%$ p.a. You don't have the funds to pay within the discount period, however, you can&nbsp;borrow at a rate of $\\var{B}\\%$ p.a. &nbsp;</p>\n<p>Should you borrow money to pay the invoice within the discount period?&nbsp;</p>", "minMarks": 0, "variableReplacementStrategy": "originalfirst", "choices": ["Yes. Borrow and get the discount.", "No. Don't borrow and just&nbsp;pay after&nbsp;the discount period."], "shuffleChoices": false}], "metadata": {"licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International", "description": "Financial maths. To be used with the question on opportunity cost."}, "variables": {"yesborrow": {"name": "yesborrow", "templateType": "anything", "definition": "if(B<OC,1,0)", "group": "Ungrouped variables", "description": "<p>1 means borrow and get the discount, 0 means don't</p>"}, "B": {"name": "B", "templateType": "anything", "definition": "random(5..25#0.01 except (OC-1)..(OC+1)#0.001)", "group": "Ungrouped variables", "description": ""}, "no": {"name": "no", "templateType": "anything", "definition": "if(B>OC,1,0)", "group": "Ungrouped variables", "description": ""}, "OC": {"name": "OC", "templateType": "anything", "definition": "random(5..25#0.01)", "group": "Ungrouped variables", "description": ""}}, "advice": "<p>The opportunity cost of forgoing a discount is $\\var{OC}\\%$ p.a., this is equivalent to borrowing at&nbsp;$\\var{OC}\\%$ p.a. However, you can actually borrow at $\\var{B}\\%$ p.a. Since you want to minimise the interest rate you are borrowing at it makes sense to <span data-jme-visible=\"yesborrow=1\">borrow money to pay within the discount period.</span> <span data-jme-visible=\"no=1\">avoid borrowing and just miss the discount.</span></p>\n<p></p>", "variable_groups": [], "extensions": [], "statement": "<p>If you are unsure of how to do&nbsp;a question, click on&nbsp;<em>Reveal answers</em>&nbsp;to see the full working. Then, once you understand how to do the question, click on&nbsp;<em>Try another question like this one</em>&nbsp;to start again. Do each question repeatedly to ensure you have mastered it.</p>", "rulesets": {}, "tags": [], "ungrouped_variables": ["OC", "B", "yesborrow", "no"], "variablesTest": {"condition": "", "maxRuns": 100}, "functions": {}, "name": "Pay during discount period or not", "preamble": {"js": "", "css": ""}, "contributors": [{"name": "Ben Brawn", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/605/"}]}]}], "contributors": [{"name": "Ben Brawn", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/605/"}]}