human
James has 3 fish tanks. 1 of the tanks has 20 fish in it and the other two have twice as many fish each as the first. How many total fish do they have?
assistant
How many fish are in the second and third tanks? ** The second and third tank each have 20*2=<<20*2=40>>40 fish
How many fish are in total? ** So in total there are 20+40*2=<<20+40*2=100>>100 fish
#### 100