Kathy had 9 more croissants than Lynn at first. After Kathy ate 5 croissants, she had five times as many croissants as Lynn in the end. How many croissants did Lynn have?
| |
Lynn |
Kathy |
| Before |
1 u |
1 u + 9 |
| Change |
|
- 5 |
| After |
1 u |
1 u + 4 |
Comparing Lynn
and Kathy in the end |
1 u |
5 u |
The number of croissants that Lynn had remains unchanged.
Number of croissants that Kathy had in the end
= 5 x 1 u
= 5 u
5 u = 1 u + 4
5 u - 1 u = 4
4 u = 4
1 u = 4 ÷ 4 = 1
Number of croissants that Lynn had
= 1 u
= 1
Answer(s): 1
