There were some pens in Packet P and Packet Q. After Gabriel transferred
35 of the pens from Packet P to Packet Q, the ratio of the number of pens in Packet P to that in Packet Q changed to 1 : 7. Find the ratio of the numbers of pens in Packet Q to the number of pens in Packet P at first.
|
Packet P |
Packet Q |
Before |
5x1 = 5 u |
11 u |
Change |
- 3x1 = - 3 u |
+ 3 u |
After |
2x1 = 2 u |
|
Comparing Packet P and Packet Q in the end |
1x2 = 2 u |
7x2 = 14 u |
The number of pens in Packet P in the end is repeated. Make the number of pens in Packet P in the end the same. LCM of 2 and 1 is 2.
At first
Packet Q : Packet P
11: 5
Answer(s): 11: 5