Opal used
34 of her gold stickers and
37 of her white stickers to decorate her diary. In the end, she had an equal number of gold stickers and white stickers left. Given that Opal had a total of 92 gold and white stickers at first, how many white stickers did she use to decorate the diary?
|
Gold stickers |
White 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 gold stickers and white stickers in the end is the same. Make the number of gold stickers and white stickers in the end the same. LCM of 1 and 4 is 4.
Total number of stickers that Opal used to decorate the diary
= 16 u + 7 u
= 23 u
23 u = 92
1 u = 92 ÷ 23 = 4
Number of white stickers that Opal used to decorate the diary
= 3 u
= 3 x 4
= 12
Answer(s): 12