There were some pencils in Box G and Box H. After Justin transferred
13 of the pencils from Box G to Box H, the ratio of the number of pencils in Box G to that in Box H changed to 1 : 9. Find the ratio of the numbers of pencils in Box G to the number of pencils in Box H at first.
| |
Box G |
Box H |
| Before |
3x1 =
3 u |
17 u |
| Change |
- 1x1 =
- 1 u |
+ 1 u |
| After |
2x1 =
2 u |
|
Comparing Box G and
Box H in the end |
1x2 =
2 u |
9x2 =
18 u |
The number of pencils in Box G in the end is repeated. Make the number of pencils in Box G in the end the same. LCM of 2 and 1 is 2.
At first
Box G : Box H
3 : 17
Answer(s): 3 : 17
