There are some cookies in the jar. On Wednesday, Lee ate
16 of the cookies. He later bought 20 cookies and added into the jar. On Thursday, Lee ate 46 cookies. He was hungry and ate another 34 cookies. There were no cookies left. How many cookies were there in the jar at first?
|
Cookies |
Before |
6 u |
Change 1 |
- 1 u |
Change 2 |
+ 20 |
Change 3 |
- 46 |
Change 4 |
- 34 |
After |
0 |
Fraction of the cookies left after Lee first ate on Wednesday
= 1 -
16=
56Number of cookies left after Lee first ate on Wednesday = 5 u
5 u = 34 + 46 - 20
5 u = 60
1 u = 60 ÷ 5 = 12
Number of cookies at first
= 6 u
= 6 x 12
= 72
Answer(s): 72