Wendy and Kylie had an equal number of sweets. After Wendy bought another 30 sweets and Kylie bought another 8 sweets, Wendy had thrice as many sweets as Kylie. Find the number of sweets that each of them had at first.
| |
Wendy |
Kylie |
| Before |
3 u - 30 |
1 u - 8 |
| Change |
+ 30 |
+ 8 |
| After |
3 u |
1 u |
The number of sweets that Wendy and Kylie had at first is the same.
3 u - 30 = 1 u - 8
3 u - 1 u = 30 - 8
2 u = 22
1 u = 22 ÷ 2 = 11
Number of sweets that each had at first
= 11 - 8
= 3
Answer(s): 3
