Level 2
There are 21 vanilla cupcakes, 35 banana cupcakes and 56 chocolate cupcakes. All the cupcakes are placed into the most number of boxes such that the number of each type of cupcakes is the same in all the boxes. Each box contains 3 different types of cupcakes. How many cupcakes are there in each box?
Level 3
Mr Tan wants to put all 27 boys and 72 girls into groups for an activity. There are more girls than boys in each group. Each group must have the same number of boys. Each group must also have the same number of girls.
What is the greatest number of groups Mr Tan can form with these conditions?