Gifts of the Nesiim

When the Mishkan was first put up the leaders of the 12 tribes each brought animals and other gifts to the Mishkan.  For the Shlamim,  the 12 nessiim (tribal leaders) together brought a total of 24 bulls, 60 rams, 60 he-goats and 60 sheep.  Each nassi gave the exact same amount.  (Bamidbar 7:88)

Question: How many of each animal did the leader of Shimon bring?

Answer:

24/12 = 2 bulls

60/12 = 5 rams

5 he-goats

5 sheep