Tina went to a shop to buy 3 litres of orange juice for a party. The store sold orange juice only in 250 mL cartons. How many 250 mL cartons will Tina need to buy?
12
1 L=1000 mL
⇒3 L=3×1000 mL
=3000 mL
Therefore, the quantity of juice Tina wants to buy equals 3000 mL.
Since the store sells only 250 mL cartons, the number of such cartons that Tina has to buy is given by 3000250=12.