Question

I need help with the first two

Answer 1

1. multiply 1/12 by 6. you get 6/12. 6/12=1/2. it takes half a minute for a full page, or thirty seconds, like you said.
2. multiply 1/6 by 3. you get 3/6. 3/6=1/2. it also takes half a minute to fill the bottle, or 30 seconds.