Yesterday, Liam had 77 puffs and 56 wafers. This morning, he sold 28 puffs and bought some more wafers. Now he has four times as many wafers as puffs. How many wafers did he buy today?
| |
Puffs |
Wafers |
| Before |
77 |
56 |
| Change |
- 28 |
+ ? |
| After |
1 u |
4 u |
Number of puffs in the end
= 77 - 28
= 49
1 u = 49
Number of wafers in the end
= 4 u
= 4 x 49
= 196
Number of wafers that Liam bought today
= 4 u - 56
= 196 - 56
= 140
Answer(s): 140
