LUNCH BOX AND MOM


Mrs. Susan likes to play tricks on her three kids. This morning she packs their personal lunch boxes in their school bags. However, she places every lunch box in the wrong bag! In how many ways can she can place all the lunch boxes wrongly?

 Answer:

 2 ways.

 Explanation:

 Three lunch boxes can be arranged in 3! ways = 6 ways.
Let's assume three children are A, B and C and the lunch boxes are 1, 2 and 3. The number of ways by which boxes can be arranged is shown in the below table and the answers are highlighted as well.
A
B
C
1
2
3
2
1
3
3
2
1
1
3
2
2
3
1
3
1
2

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