There were some stickers in Packet H and Packet J. After Bobby transferred
15 of the stickers from Packet H to Packet J, the ratio of the number of stickers in Packet H to that in Packet J changed to 2 : 5. Find the ratio of the numbers of stickers in Packet J to the number of stickers in Packet H at first.
|
Packet H |
Packet J |
Before |
5x1 = 5 u |
9 u |
Change |
- 1x1 = - 1 u |
+ 1 u |
After |
4x1 = 4 u |
|
Comparing Packet H and Packet J in the end |
2x2 = 4 u |
5x2 = 10 u |
The number of stickers in Packet H in the end is repeated. Make the number of stickers in Packet H in the end the same. LCM of 4 and 2 is 4.
At first
Packet J : Packet H
9: 5
Answer(s): 9: 5