Susan has 3 fish tanks to fill. 1 fish tank contains 7 goldfish and 8 beta fish. The second fish tank contains twice as many fish as the first tank and the third fish tank has a third of the number of fish in the second fish tank. How many fish are in the third fish tank?
In the first fish tank, there are 7 goldfish + 8 beta fish = <T>add(7, 8)=15 fish.
The second fish tank therefore has 15 fish in the first tank * 2 = <T>multiply(15, 2)=30 fish.
So the third tank has 30 fish in the second fish tank / 3 = <T>divide(30, 3)=10.0 fish.
