Sarah and Betty had the same number of lollipops at first. After Sarah received another 16 lollipops and Betty gave away 18 lollipops, Sarah had 3 times as many lollipops as Betty. How many lollipops did each of them have at first?
| |
Sarah |
Betty |
| Before |
3 u - 16 |
1 u + 18 |
| Change |
+ 16 |
- 18 |
| After |
3 u |
1 u |
Sarah and Betty had the same number of lollipops at first.
3 u - 16 = 1 u + 18
3 u - 1 u = 18 + 16
2 u = 34
1 u = 34 ÷ 2 = 17
Number of lollipops that each of them at first
= 17 + 18
= 35
Answer(s): 35
