Level 2
Fill in the blanks.
The number of boys is 4 times as many as the number of girls.
The number of adults is twice the number of children.
Let the number of girls be 1 u.
Level 3
Adam has 20 stickers.
The stickers are then shared by 3 friends and he needs 4 more so that
each friend receives the same number of stickers.
How many will each friend receive?