There were some pencils in Box E and Box F. After Wesley transferred
25 of the pencils from Box E to Box F, the ratio of the number of pencils in Box E to that in Box F changed to 1 : 8. Find the ratio of the numbers of pencils in Box E to the number of pencils in Box F at first.
|
Box E |
Box F |
Before |
5x1 = 5 u |
22 u |
Change |
- 2x1 = - 2 u |
+ 2 u |
After |
3x1 = 3 u |
|
Comparing Box E and Box F in the end |
1x3 = 3 u |
8x3 = 24 u |
The number of pencils in Box E in the end is repeated. Make the number of pencils in Box E in the end the same. LCM of 3 and 1 is 3.
At first
Box E : Box F
5 : 22
Answer(s): 5 : 22