The ratio of the number of blue stickers to green stickers is 8 : 3.
After Adam buys 10 blue stickers and 70 green stickers,
there is an equal number of blue stickers and green stickers.
How many stickers does Adam have now?
|
Blue |
Green |
Before |
8 u |
3 u |
Change |
+ 10 |
+ 70 |
After |
8 u + 10 |
3 u + 70 |
The number of blue stickers and green stickers are equal in the end.
8 u + 10 = 3 u + 70
8 u - 3 u = 70 - 10
5 u = 60
1 u = 60 ÷ 5 = 12
Number of stickers that Adam has now
= 8 u + 10 + 3 u + 70
= 8 u + 3 u + 10 + 70
= 11 u + 80
= 11 x 12 + 80
= 132 + 80
= 212
Answer(s): 212