Olivia used
23 of her white stickers and
35 of her silver stickers to decorate her diary. In the end, she had an equal number of white stickers and silver stickers left. Given that Olivia had a total of 121 white and silver stickers at first, how many silver stickers did she use to decorate the diary?
|
White stickers |
Silver stickers |
Before |
3x2 = 6 u |
5x1 = 5 u |
Change |
- 2x2 = - 4 u |
- 3x1 = - 3 u |
After |
1x2 = 2 u |
2x1 = 2 u |
The number of white stickers and silver stickers in the end is the same. Make the number of white stickers and silver stickers in the end the same. LCM of 1 and 2 is 2.
Total number of stickers that Olivia used to decorate the diary
= 6 u + 5 u
= 11 u
11 u = 121
1 u = 121 ÷ 11 = 11
Number of silver stickers that Olivia used to decorate the diary
= 3 u
= 3 x 11
= 33
Answer(s): 33