There are some wafers in the jar. On Saturday, Glen ate
47 of the wafers. He later bought 22 wafers and added into the jar. On Sunday, Glen ate 49 wafers. He was hungry and ate another 36 wafers. There were no wafers left. How many wafers were there in the jar at first?
|
Wafers |
Before |
7 u |
Change 1 |
- 4 u |
Change 2 |
+ 22 |
Change 3 |
- 49 |
Change 4 |
- 36 |
After |
0 |
Fraction of the wafers left after Glen first ate on Saturday
= 1 -
47=
37Number of wafers left after Glen first ate on Saturday = 3 u
3 u = 36 + 49 - 22
3 u = 63
1 u = 63 ÷ 3 = 21
Number of wafers at first
= 7 u
= 7 x 21
= 147
Answer(s): 147