There were some marbles in Packet T and Packet U. After Asher transferred
35 of the marbles from Packet T to Packet U, the ratio of the number of marbles in Packet T to that in Packet U changed to 1 : 5. Find the ratio of the numbers of marbles in Packet T to the number of marbles in Packet U at first.
|
Packet T |
Packet U |
Before |
5x1 = 5 u |
7 u |
Change |
- 3x1 = - 3 u |
+ 3 u |
After |
2x1 = 2 u |
|
Comparing Packet T and Packet U in the end |
1x2 = 2 u |
5x2 = 10 u |
The number of marbles in Packet T in the end is repeated. Make the number of marbles in Packet T in the end the same. LCM of 2 and 1 is 2.
At first
Packet T : Packet U
5 : 7
Answer(s): 5 : 7