The number of green and blue stickers are equal.
If Adam gives away 60 green stickers and 50 blue stickers,
the ratio of green stickers to blue stickers becomes 1 : 3.
How many stickers are there at first?
|
Green |
Blue |
Before |
1 u + 60 |
3 u + 50 |
Change |
- 60 |
- 50 |
After |
1 u |
3 u |
The number of green and blue stickers is the same at first.
1 u + 60 = 3 u + 50
3 u - 1 u = 60 - 50
2 u = 10
1 u = 10 ÷ 2 = 5
Number of stickers that Adam has at first
= 1 u + 60 + 3 u + 50
= 1 u + 3 u + 60 + 50
= 4 u + 110
= 4 x 5 + 110
= 20 + 110
= 130
Answer(s): 130