Question: A grade nine student may build a timetable by selecting one course from each period, with no duplication of courses. Period 1 must be science,
A grade nine student may build a timetable by selecting one course from each period, with no duplication of courses. Period 1 must be science, geography or English. Period 2 must be art or music. Periods 3 and 4 must be mathematics or business. How many different timetables could a student choose?
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