ripple ethereum mining cryptocurrencies income

I have never mined crypto before but I just thought of something and i'm wondering if this would work or not. My school has a computer lab with like 50 computers in it. Would it be possible to mine crypto from all the computers at the school and run the profits into one crypto account? if this...

Hey I just saw ripple is down to $0.568 Can anyone suggest either to invest or not? thankyou

I wanted to buy ethereum and some other cryptos but have no money is there any other way to earn cryptos like ethereum , ripple etc WITHOUT mining ? Thx have a good day.