Maths Problem 1/4/15

Today for maths we got this question from Mrs Tofa that we had to solve. This is it:

Piri, Maia, and Ollie are planning to make piklets for afternoon tea. The recipie needs 3/4 of a cup of milk to make a batch of 25 piklets. How many cups of milk do they need to make 100 piklets?
They discover that they have 5 1/2 cups of milk. How many batches of piklets are they able to make?

I didn't solve it yet, but I am sure that someone else in my group solved it.