The diagram shows two different buttons and their weights.
8 grams
12 grams
The buttons are sold in bags.
Each bag contains 144 grams of buttons.
a)
How many of button A are needed to fill one bag?
b)
How many of button B are needed to fill one bag?
A box of buttons contains the same number of each type of button.
It contains 220g of buttons.
c)
How many of each type of button are in the box?