Stella and Aria had an equal number of lollipops at first. After Stella bought another 8 lollipops and Aria lost 13 lollipops, Stella had four times as many lollipops as Aria. Find the number of lollipops each of them had at first.
| |
Stella |
Aria |
| Before |
4 u - 8 |
1 u + 13 |
| Change |
+ 8 |
- 13 |
| After |
4 u |
1 u |
The number of lollipops that Stella and Aria at first is the same.
4 u - 8 = 1 u + 13
4 u - 1 u = 13 + 8
3 u = 21
1 u = 21 ÷ 3 = 7
Number of lollipops that each of them had at first
= 1 u + 13
= 7 + 13
= 20
Answer(s): 20
