the original price is "x", or 100%.
but we know that if we reduce "x" by 20%, namely 100% - 20% = 80%, the 80% of "x" is really £50, what is "x" or the 100% anyway?

Answer:
8 trips
Step-by-step explanation:
ALl you have to do is divide 48 by 6, which will give you 8, and there's your answer!
I think it's 1.90. I am not fully sure about the answer if it's wrong.