Permutations with Repetition/Restrictions
10 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest — every one with a full worked solution. Work through them free, no account needed.
Sample: the first question, solved
Find the distinct arrangements of the letters in "DEED" (2 D's, 2 E's).
📘 Worked solution
✓4!/(2!2!)=6.
And one from the hard end
Find the distinct arrangements of "MISSISSIPPI" (4 I's, 4 S's, 2 P's).
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
Your Winny Score tracks you as the questions ramp up. Stuck on one? A real Winny Math tutor will walk you through it — first lesson free.
Start practicing