5. A fruit concentrate is sold in 250 mL packs. The instructions are 'Add water to make one litre of ready-to-drink fruit juice'.
A. What is the ratio of concentrate to water in the made-up juice?
B. How many litres of water are required to dilute 2 L of concentrate?
C. Find the volume of water in 6 L of made-up juice.
D. If one litre of made-up juice fills 5 glasses, how many packs of concentrate are needed to make the juice to fill 80 glasses?