Question

You are thirsty,so a friend has offered to give you 50% of his water. What information must you have in order to find out how much water your friend will give you?

Answer 1

The information you must have in order to find out how much water your friend will give you is the total amount of water your friend has.

Answer 2

Well, to find out how much water you will be given you will need to know how much water is already there so you could determine the half of it.

Hope I helped!!

~A