1.Sheena wants to make lime juice.
She is going to buy crates of limes.
There are 16 limes in each crate of limes.
40 limes make 2 litres of lime juice.
Sheena needs to buy enough limes to make 12 litres of lime juice.
Work out the number of crates of limes that Sheena needs to buy.
You must show all your working.
