Josie makes fruit punch by mixing fruit juice and lemonade in the ratio 3 : 2

She needs to make 30 litres of punch for a party.
How much of each ingredient does she need?
Fruit juice =
litres
Lemonade =
litres

During the party Josie decides to make some more.
She has 12 litres of fruit juice left and plenty of lemonade.
How much extra punch can she make?
litres

To make the second batch of punch go further Josie
adds 4 more litres of lemonade.
What is the ratio of fruit juice to
lemonade in the second batch?