The number of green and red stickers are equal.
If Adam gives away 60 green stickers and 50 red stickers,
the ratio of green stickers to red stickers becomes 3 : 8.
How many stickers are there at first?
|
Green |
Red |
Before |
3 u + 60 |
8 u + 50 |
Change |
- 60 |
- 50 |
After |
3 u |
8 u |
The number of green and red stickers is the same at first.
3 u + 60 = 8 u + 50
8 u - 3 u = 60 - 50
5 u = 10
1 u = 10 ÷ 5 = 2
Number of stickers that Adam has at first
= 3 u + 60 + 8 u + 50
= 3 u + 8 u + 60 + 50
= 11 u + 110
= 11 x 2 + 110
= 22 + 110
= 132
Answer(s): 132