Combinations
30 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest, every one with a full worked solution. Work through all 30 with your weekly-lesson access code.
Sample: the first question, solved
Find C(4,2).
📘 Worked solution
✓C(4,2)=4!/(2!2!)=6.
And one from the hard end
"A committee of 4 is chosen from 7 Grade 11 and 5 Grade 12 students, requiring exactly 2 from each grade. Find the total possible committees."
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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