There are some biscuits in the jar. On Tuesday, John ate
29 of the biscuits. He later bought 27 biscuits and added into the jar. On Wednesday, John ate 43 biscuits. He was hungry and ate another 33 biscuits. There were no biscuits left. How many biscuits were there in the jar at first?
|
Biscuits |
Before |
9 u |
Change 1 |
- 2 u |
Change 2 |
+ 27 |
Change 3 |
- 43 |
Change 4 |
- 33 |
After |
0 |
Fraction of the biscuits left after John first ate on Tuesday
= 1 -
29=
79Number of biscuits left after John first ate on Tuesday = 7 u
7 u = 33 + 43 - 27
7 u = 49
1 u = 49 ÷ 7 = 7
Number of biscuits at first
= 9 u
= 9 x 7
= 63
Answer(s): 63