There were some stickers in Packet Q and Packet R. After Brandon transferred
15 of the stickers from Packet Q to Packet R, the ratio of the number of stickers in Packet Q to that in Packet R changed to 3 : 4. Find the ratio of the numbers of stickers in Packet Q to the number of stickers in Packet R at first.
|
Packet Q |
Packet R |
Before |
5x3 = 15 u |
13 u |
Change |
- 1x3 = - 3 u |
+ 3 u |
After |
4x3 = 12 u |
|
Comparing Packet Q and Packet R in the end |
3x4 = 12 u |
4x4 = 16 u |
The number of stickers in Packet Q in the end is repeated. Make the number of stickers in Packet Q in the end the same. LCM of 4 and 3 is 12.
At first
Packet Q : Packet R
15 : 13
Answer(s): 15 : 13