Everyone knows the story "Cao Chong is called an elephant", right? Cao Chong didn't call the elephant casually, but used the method of "equivalent substitution": two exactly equal quantities can be substituted for each other. This method is often used to solve mathematical problems.

Please use the method of "equivalent replacement" to calculate: 1 pig can be exchanged for 4 sheep and 2 sheep for 6 rabbits, so how many rabbits can 5 pigs be exchanged?

Answer: 2 sheep = 6 rabbits, so 1 sheep = 3 rabbits, so 4 sheep can be exchanged for 4×3 = 12 rabbits, so 1 pig can be exchanged for 12 rabbits, and 5 pigs can be exchanged for12× 2 rabbits.