Yesterday, Ethan had 79 cookies and 19 shortbreads. This morning, he sold 38 cookies and bought some more shortbreads. Now he has four times as many shortbreads as cookies. How many shortbreads did he buy today?
| |
Cookies |
Shortbreads |
| Before |
79 |
19 |
| Change |
- 38 |
+ ? |
| After |
1 u |
4 u |
Number of cookies in the end
= 79 - 38
= 41
1 u = 41
Number of shortbreads in the end
= 4 u
= 4 x 41
= 164
Number of shortbreads that Ethan bought today
= 4 u - 19
= 164 - 19
= 145
Answer(s): 145
