The ratio of the number of green stickers to blue stickers is 8 : 3.
After Adam buys 10 green stickers and 40 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 |
+ 10 |
+ 40 |
After |
8 u + 10 |
3 u + 40 |
The number of green stickers and blue stickers are equal in the end.
8 u + 10 = 3 u + 40
8 u - 3 u = 40 - 10
5 u = 30
1 u = 30 ÷ 5 = 6
Number of stickers that Adam has now
= 8 u + 10 + 3 u + 40
= 8 u + 3 u + 10 + 40
= 11 u + 50
= 11 x 6 + 50
= 66 + 50
= 116
Answer(s): 116