Four kids can wash three whiteboards in 20 minutes. How long would it take, in minutes, for one kid to wash six whiteboards?
Four kids can wash [NUMBER] whiteboards in [NUMBER] minutes. How long would it take, in minutes, for one kid to wash [NUMBER] whiteboards?
One kid can wash three whiteboards in 20*4=<<20*4=80>>80 minutes.
One kid can wash six whiteboards in 80*(6/3)=160 minutes.
#### 160