The ratio of the number of blue stickers to green stickers is 7 : 5.
After Adam gives away another 56 blue stickers and 56 green stickers,
the ratio of the number of blue stickers to green stickers is 7 : 3.
How many stickers does Adam have now?
|
Blue |
Green |
Difference |
Before |
7 x 2 = 14 u |
5 x 2 = 10 u |
2 x 2 = 4 u |
Change |
- 56 |
- 56 |
|
After |
7 x 1 = 7 u |
3 x 1 = 3 u |
4 x 1 = 4 u |
The difference in the number of blue stickers and green stickers is the same.
Make the difference in the number of blue stickers and green stickers the same using the LCM of 2 and 4.
LCM of 2 and 4 = 4
Number of blue stickers that Adam gives away
= 14 u - 7 u
= 7 u
7 u = 56
1 u = 56 ÷ 7 = 8
Number of stickers that Adam has now
= 7 u + 3 u
= 10 u
= 10 x 8
= 80
Answer(s): 80