Fran has four dogs whose ages are 3, 4, 5 and 6 years. She feeds them one at a time according to the rule that a younger dog can never eat right before a dog that is only one year older. In how many different orders can Fran feed her four dogs?
Fran has four dogs whose ages are 3, 4, 5 and 6 years. She feeds them one at a time according to the rule that a younger dog can never eat right before a dog that is only one year older. In how many different orders can Fran feed her four dogs? Can you solve this? - candidate answer list

Can you solve this?

Math Topic: Logic
Grade: 6, 7, 8

Key Word: Logic math puzzle, MathCounts,
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