Mary and Kylie had an equal number of sweets. After Mary bought another 26 sweets and Kylie bought another 6 sweets, Mary had thrice as many sweets as Kylie. Find the number of sweets that each of them had at first.
| |
Mary |
Kylie |
| Before |
3 u - 26 |
1 u - 6 |
| Change |
+ 26 |
+ 6 |
| After |
3 u |
1 u |
The number of sweets that Mary and Kylie had at first is the same.
3 u - 26 = 1 u - 6
3 u - 1 u = 26 - 6
2 u = 20
1 u = 20 ÷ 2 = 10
Number of sweets that each had at first
= 10 - 6
= 4
Answer(s): 4
