There are some biscuits in the jar. On Monday, Ken ate
16 of the biscuits. He later bought 29 biscuits and added into the jar. On Tuesday, Ken ate 45 biscuits. He was hungry and ate another 39 biscuits. There were no biscuits left. How many biscuits were there in the jar at first?
|
Biscuits |
Before |
6 u |
Change 1 |
- 1 u |
Change 2 |
+ 29 |
Change 3 |
- 45 |
Change 4 |
- 39 |
After |
0 |
Fraction of the biscuits left after Ken first ate on Monday
= 1 -
16=
56Number of biscuits left after Ken first ate on Monday = 5 u
5 u = 39 + 45 - 29
5 u = 55
1 u = 55 ÷ 5 = 11
Number of biscuits at first
= 6 u
= 6 x 11
= 66
Answer(s): 66