Lucy had 72 more stickers than Joelle. After Joelle gave away
18 of her stickers, Lucy had twice as many stickers as Joelle. How many stickers did Joelle have at first?
| |
Lucy |
Joelle |
Comparing Lucy and
Joelle at first |
72 more |
|
| Before |
14 u |
8 u |
| Change |
|
- 1 u |
| After |
14 u |
7 u |
Comparing Lucy and
Joelle in the end |
2x7 =
14 u |
1x7 =
7 u |
Number of stickers that Joelle had in the end is repeated. Make the number of stickers that Joelle had in the end the same. LCM of 1 and 7 is 7.
Number of stickers that Lucy had at first = 14 u
Number of stickers that Lucy had more than Joelle at first
= 14 u - 8 u
= 6 u
6 u = 72
1 u = 72 ÷ 6 = 12
Number of stickers that Joelle had at first
= 8 u
= 8 x 12
= 96
Answer(s): 96
