human
On our last vacation, I bought 4 times as many tetras as Tim bought clowns. Tim bought twice as many clowns as Rick bought guppies. If Rick bought 30 guppies, how many animals did we buy on our last vacation?
assistant
How many clowns did Tim buy? ** If Rick bought 30 guppies, Tim bought 2 clowns/guppy * 30 guppies = <<2*30=60>>60 clowns.
How many tetras did you buy? ** The total number of tetras bought by you is 4 tetras/clown * 60 clowns = <<4*60=240>>240 tetras
How many animals did we buy on our last vacation? ** In total, the three bought 240 tetras + 60 clowns + 30 guppies = <<240+60+30=330>>330 animals.
#### 330