human
Tim has 30 toads. Jim has 20 more toads than Tim does. Sarah has twice as many toads as Jim does. How many toads does Sarah have?
assistant
How many toads does Jim have? ** Jim has 30+20 = <<30+20=50>>50 toads
How many toads does Sarah have? ** Sarah has 50*2 = <<50*2=100>>100 toads
#### 100