The ratio of the number of green stickers to blue stickers is 5 : 2.
After Adam gives away another 75 green stickers and 75 blue stickers,
the ratio of the number of green stickers to blue stickers is 3 : 1.
How many stickers does Adam have now?
|
Green |
Blue |
Difference |
Before |
5 x 2 = 10 u |
2 x 2 = 4 u |
3 x 2 = 6 u |
Change |
- 75 |
- 75 |
|
After |
3 x 3 = 9 u |
1 x 3 = 3 u |
2 x 3 = 6 u |
The difference in the number of green stickers and blue stickers is the same.
Make the difference in the number of green stickers and blue stickers the same using the LCM of 3 and 2.
LCM of 3 and 2 = 6
Number of green stickers that Adam gives away
= 10 u - 9 u
= 1 u
1 u = 75
Number of stickers that Adam has now
= 9 u + 3 u
= 12 u
= 12 x 75
= 900
Answer(s): 900