The number of blue and green stickers are equal.
If Adam gives away 80 blue stickers and 10 green stickers,
the ratio of blue stickers to green stickers becomes 3 : 8.
How many stickers are there at first?
|
Blue |
Green |
Before |
3 u + 80 |
8 u + 10 |
Change |
- 80 |
- 10 |
After |
3 u |
8 u |
The number of blue and green stickers is the same at first.
3 u + 80 = 8 u + 10
8 u - 3 u = 80 - 10
5 u = 70
1 u = 70 ÷ 5 = 14
Number of stickers that Adam has at first
= 3 u + 80 + 8 u + 10
= 3 u + 8 u + 80 + 10
= 11 u + 90
= 11 x 14 + 90
= 154 + 90
= 244
Answer(s): 244