There are some wafers in the jar. On Friday, Ken ate
57 of the wafers. He later bought 30 wafers and added into the jar. On Saturday, Ken ate 41 wafers. He was hungry and ate another 25 wafers. There were no wafers left. How many wafers were there in the jar at first?
|
Wafers |
Before |
7 u |
Change 1 |
- 5 u |
Change 2 |
+ 30 |
Change 3 |
- 41 |
Change 4 |
- 25 |
After |
0 |
Fraction of the wafers left after Ken first ate on Friday
= 1 -
57=
27Number of wafers left after Ken first ate on Friday = 2 u
2 u = 25 + 41 - 30
2 u = 36
1 u = 36 ÷ 2 = 18
Number of wafers at first
= 7 u
= 7 x 18
= 126
Answer(s): 126