The photocopying rates of two machines V and W are as shown. Both machines were use to make a copy of a set of notes which had been divided into teacher set and student set. Machine V took 3 minutes is to photocopy teacher set and Machine W took 5 minutes to photocopy student set.
- How many pages were there altogether in the set of notes?
- Another copy of the same set of notes was made using Machine W only. How many minutes did Machine W take?