There are some biscuits in the jar. On Thursday, Ahmad ate
13 of the biscuits. He later bought 29 biscuits and added into the jar. On Friday, Ahmad ate 50 biscuits. He was hungry and ate another 37 biscuits. There were no biscuits left. How many biscuits were there in the jar at first?
|
Biscuits |
Before |
3 u |
Change 1 |
- 1 u |
Change 2 |
+ 29 |
Change 3 |
- 50 |
Change 4 |
- 37 |
After |
0 |
Fraction of the biscuits left after Ahmad first ate on Thursday
= 1 -
13=
23Number of biscuits left after Ahmad first ate on Thursday = 2 u
2 u = 37 + 50 - 29
2 u = 58
1 u = 58 ÷ 2 = 29
Number of biscuits at first
= 3 u
= 3 x 29
= 87
Answer(s): 87