There are some muffins in the jar. On Saturday, Ivan ate
29 of the muffins. He later bought 28 muffins and added into the jar. On Sunday, Ivan ate 40 muffins. He was hungry and ate another 37 muffins. There were no muffins left. How many muffins were there in the jar at first?
|
Muffins |
Before |
9 u |
Change 1 |
- 2 u |
Change 2 |
+ 28 |
Change 3 |
- 40 |
Change 4 |
- 37 |
After |
0 |
Fraction of the muffins left after Ivan first ate on Saturday
= 1 -
29=
79Number of muffins left after Ivan first ate on Saturday = 7 u
7 u = 37 + 40 - 28
7 u = 49
1 u = 49 ÷ 7 = 7
Number of muffins at first
= 9 u
= 9 x 7
= 63
Answer(s): 63