There were some beads in Packet K and Packet L. After Gabriel transferred
13 of the beads from Packet K to Packet L, the ratio of the number of beads in Packet K to that in Packet L changed to 3 : 8. Find the ratio of the numbers of beads in Packet L to the number of beads in Packet K at first.
|
Packet K |
Packet L |
Before |
3x3 = 9 u |
13 u |
Change |
- 1x3 = - 3 u |
+ 3 u |
After |
2x3 = 6 u |
|
Comparing Packet K and Packet L in the end |
3x2 = 6 u |
8x2 = 16 u |
The number of beads in Packet K in the end is repeated. Make the number of beads in Packet K in the end the same. LCM of 2 and 3 is 6.
At first
Packet L : Packet K
13: 9
Answer(s): 13: 9