Hazel had 13 more shortbreads than Yen at first. After Hazel ate 4 shortbreads, she had four times as many shortbreads as Yen in the end. How many shortbreads did Yen have?
| |
Yen |
Hazel |
| Before |
1 u |
1 u + 13 |
| Change |
|
- 4 |
| After |
1 u |
1 u + 9 |
Comparing Yen
and Hazel in the end |
1 u |
4 u |
The number of shortbreads that Yen had remains unchanged.
Number of shortbreads that Hazel had in the end
= 4 x 1 u
= 4 u
4 u = 1 u + 9
4 u - 1 u = 9
3 u = 9
1 u = 9 ÷ 3 = 3
Number of shortbreads that Yen had
= 1 u
= 3
Answer(s): 3
