Question

It takes 42 minutes for 6 printing machines to produce a batch of newspapers.

Q a) how many minutes would it take just 1 machine?

Q b)how many minutes would it take 8 machines?

Answer 1

a) 7 minutes just to take 1 machine.
b) 56 minutes just to take 8 machines.
The work is showed on the paper

Answer 2

A.7 B.56

A. It is 7 if you divide 42/6. 1 machine takes 7 minutes.

B. If you add 7 two times to 42 since one machine takes 7 minutes you get 56 minutes.