There were some pencils in Packet A and Packet B. After Glen transferred
25 of the pencils from Packet A to Packet B, the ratio of the number of pencils in Packet A to that in Packet B changed to 1 : 5. Find the ratio of the numbers of pencils in Packet A to the number of pencils in Packet B at first.
|
Packet A |
Packet B |
Before |
5x1 = 5 u |
13 u |
Change |
- 2x1 = - 2 u |
+ 2 u |
After |
3x1 = 3 u |
|
Comparing Packet A and Packet B in the end |
1x3 = 3 u |
5x3 = 15 u |
The number of pencils in Packet A in the end is repeated. Make the number of pencils in Packet A in the end the same. LCM of 3 and 1 is 3.
At first
Packet A : Packet B
5 : 13
Answer(s): 5 : 13