Yesterday, Howard had 72 shortbreads and 85 wafers. This morning, he sold 38 shortbreads and bought some more wafers. Now he has four times as many wafers as shortbreads. How many wafers did he buy today?
| |
Shortbreads |
Wafers |
| Before |
72 |
85 |
| Change |
- 38 |
+ ? |
| After |
1 u |
4 u |
Number of shortbreads in the end
= 72 - 38
= 34
1 u = 34
Number of wafers in the end
= 4 u
= 4 x 34
= 136
Number of wafers that Howard bought today
= 4 u - 85
= 136 - 85
= 51
Answer(s): 51
