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