Jaslyn used
25 of her pink stickers and
27 of her purple stickers to decorate her diary. In the end, she had an equal number of pink stickers and purple stickers left. Given that Jaslyn had a total of 460 pink and purple stickers at first, how many purple stickers did she use to decorate the diary?
|
Pink stickers |
Purple stickers |
Before |
5x5 = 25 u |
7x3 = 21 u |
Change |
- 2x5 = - 10 u |
- 2x3 = - 6 u |
After |
3x5 = 15 u |
5x3 = 15 u |
The number of pink stickers and purple stickers in the end is the same. Make the number of pink stickers and purple stickers in the end the same. LCM of 3 and 5 is 15.
Total number of stickers that Jaslyn used to decorate the diary
= 25 u + 21 u
= 46 u
46 u = 460
1 u = 460 ÷ 46 = 10
Number of purple stickers that Jaslyn used to decorate the diary
= 6 u
= 6 x 10
= 60
Answer(s): 60