We know that
• She bought 13 packs of red rings.
,
• She bought 16 packs of yellow rings.
,
• She bought 14 packs of green rings.
,
• Each pack has 12 rings.
This problem is about multiplication, notice that each pack includes 12 rings, that means we need to multiply each pack by 12, in order to find the total number of rings of each color.
There are 156 red rings.
There are 192 yellow rings.
There are 168 green rings.
Now, we sum all these numbers to find the total
Therefore, there are 516 rings in total.