The ratio of the number of green stickers to blue stickers is 8 : 3.
After Adam gives away 80 green stickers and 20 blue stickers,
there is an equal number of green stickers and blue stickers.
How many stickers does Adam have now?
|
Green |
Blue |
Before |
8 u |
3 u |
Change |
- 80 |
- 20 |
After |
8 u - 80 |
3 u - 20 |
The number of green stickers and blue stickers in the end is the same.
8 u - 80 = 3 u - 20
8 u - 3 u = 80 - 20
5 u = 60
1 u = 60 ÷ 5 = 12
Number of stickers that Adam has now
= 8 u - 80 + 3 u - 20
= 8 u + 3 u - 80 - 20
= 11 u - 100
= 11 x 12 - 100
= 132 - 100
= 32
Answer(s): 32