if part x of magnet A is the north pole, what pole is part y of magnet C?
Part X is a top part of A (N)
so the bottom part of A is (S)
top part of B is should be (S) to make A floating
so bottom part of B is (N) as same as top part of C
cause Y is a bottom part of C, so Y is (S)
Y is a south pole
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