// Numbas version: exam_results_page_options {"name": "Video 8 practise - NR Portal (SHU)", "metadata": {"description": "

Questions based on using a calculator effectively and work under pressure.

", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "duration": 120, "percentPass": 0, "showQuestionGroupNames": false, "shuffleQuestionGroups": false, "showstudentname": true, "question_groups": [{"name": "Group", "pickingStrategy": "all-ordered", "pickQuestions": 1, "questionNames": ["", ""], "variable_overrides": [[], []], "questions": [{"name": "Q1 Pressure, timing & using calculator effectively (Video 8 NR Portal SHU)", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "vijay (gmail) teeluck", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/1577/"}], "tags": [], "metadata": {"description": "

This question puts the candidate under pressure as the answer is nto obvious.

", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "statement": "

The table below summarises the number of visitors to a museum over a 5 month period.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Adult            (at £10)

\n		\n

Junior         (at £7)

\n		\n

Concession (at £4)

\n		\n

Free         (at £0)

\n		\n

Total

\n
\n

May

\n		\n

600

\n		\n

400

\n		\n

200

\n		\n

100

\n		\n

1,300

\n
\n

June

\n		\n

700

\n		\n

250

\n		\n

300

\n		\n

100

\n		\n

1,350

\n
\n

July

\n		\n

900

\n		\n

800

\n		\n

350

\n		\n

150

\n		\n

2,200

\n
\n

August

\n		\n

950

\n		\n

900

\n		\n

450

\n		\n

200

\n		\n

2,500

\n
\n

September

\n		\n

0

\n		\n

300

\n		\n

250

\n		\n

100

\n		\n

1,250

\n
\n

In which month did the lowest weekly total of free admissions occur?

", "advice": "

The information given is for a 5 month period. There is no breakdown of weekly costs and under timed conditions it is easy to panic.

\n

So, try to remain focussed and calm and be prepared that there may not be a numerical solution to the answer.

", "rulesets": {}, "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": [], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "m_n_2", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "minMarks": 0, "maxMarks": 0, "shuffleChoices": false, "displayType": "checkbox", "displayColumns": 0, "minAnswers": 0, "maxAnswers": 0, "warningType": "none", "showCellAnswerState": true, "markingMethod": "sum ticked cells", "choices": ["May", "June", "September", "May, June or September", "Cannot tell"], "matrix": [0, 0, 0, 0, "1"], "distractors": ["", "", "", "", ""]}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always"}, {"name": "Q2 Pressure, timing & using calculator effectively (Video 8 NR Portal SHU)", "extensions": [], "custom_part_types": [], "resources": [["question-resources/Video_5_pic_2_MriCt9a.png", "/srv/numbas/media/question-resources/Video_5_pic_2_MriCt9a.png"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "vijay (gmail) teeluck", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/1577/"}], "tags": [], "metadata": {"description": "

This question involves using a calculator efectively & efficiently.

", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "statement": "

This chart shows the annual profit made by two teams within a company over 5 years.

\n

\n

On the basis of the Year 5 profits, a forecast is made for Year 6. It is predicted that Team 1 will increase their profits by 4% while Team 2’s profits will decrease by 4%.

\n

What will be the forecast for the percentage increase in total profits?

", "advice": "

This is quite a complicated calculation, and it is good practice to know how your calculator works especially if you want to use the memory.

\n

Year 5 total profit = 45+50 = 95

\n

4% increase in Team 1’s profits = 1.04 x 45 = 46.8

\n

4% decrease in Team 2’s profits = 0.96 x 50 = 48

\n

Predicted profit for Year 6 = 46.8 + 48 = 94.8

\n

\n

Percentage change = (New - Old)/Old  X 100%

\n

= (94.8 - 95)/95  X 100%

\n

= -0.21%

", "rulesets": {}, "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": [], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "m_n_2", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "minMarks": 0, "maxMarks": 0, "shuffleChoices": false, "displayType": "checkbox", "displayColumns": 0, "minAnswers": 0, "maxAnswers": 0, "warningType": "none", "showCellAnswerState": true, "markingMethod": "sum ticked cells", "choices": ["4%", "0.21%", "0%", "-0.21%", "-4%"], "matrix": [0, 0, 0, "1", 0], "distractors": ["", "", "", "", ""]}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always"}]}], "allowPrinting": true, "navigation": {"allowregen": true, "reverse": true, "browse": true, "allowsteps": true, "showfrontpage": true, "showresultspage": "oncompletion", "navigatemode": "sequence", "onleave": {"action": "none", "message": ""}, "preventleave": true, "startpassword": ""}, "timing": {"allowPause": true, "timeout": {"action": "none", "message": ""}, "timedwarning": {"action": "none", "message": ""}}, "feedback": {"showactualmark": true, "showtotalmark": true, "showanswerstate": true, "allowrevealanswer": true, "advicethreshold": 0, "intro": "", "reviewshowscore": true, "reviewshowfeedback": true, "reviewshowexpectedanswer": true, "reviewshowadvice": true, "feedbackmessages": []}, "diagnostic": {"knowledge_graph": {"topics": [], "learning_objectives": []}, "script": "diagnosys", "customScript": ""}, "contributors": [{"name": "vijay (gmail) teeluck", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/1577/"}], "extensions": [], "custom_part_types": [], "resources": [["question-resources/Video_5_pic_2_MriCt9a.png", "/srv/numbas/media/question-resources/Video_5_pic_2_MriCt9a.png"]]}