Mary used
34 of her red stickers and
37 of her green stickers to decorate her diary. In the end, she had an equal number of red stickers and green stickers left. Given that Mary had a total of 184 red and green stickers at first, how many green stickers did she use to decorate the diary?
|
Red stickers |
Green stickers |
Before |
4x4 = 16 u |
7x1 = 7 u |
Change |
- 3x4 = - 12 u |
- 3x1 = - 3 u |
After |
1x4 = 4 u |
4x1 = 4 u |
The number of red stickers and green stickers in the end is the same. Make the number of red stickers and green stickers in the end the same. LCM of 1 and 4 is 4.
Total number of stickers that Mary used to decorate the diary
= 16 u + 7 u
= 23 u
23 u = 184
1 u = 184 ÷ 23 = 8
Number of green stickers that Mary used to decorate the diary
= 3 u
= 3 x 8
= 24
Answer(s): 24