There are some biscuits in the jar. On Monday, Nick ate
35 of the biscuits. He later bought 30 biscuits and added into the jar. On Tuesday, Nick ate 50 biscuits. He was hungry and ate another 38 biscuits. There were no biscuits left. How many biscuits were there in the jar at first?
|
Biscuits |
Before |
5 u |
Change 1 |
- 3 u |
Change 2 |
+ 30 |
Change 3 |
- 50 |
Change 4 |
- 38 |
After |
0 |
Fraction of the biscuits left after Nick first ate on Monday
= 1 -
35=
25Number of biscuits left after Nick first ate on Monday = 2 u
2 u = 38 + 50 - 30
2 u = 58
1 u = 58 ÷ 2 = 29
Number of biscuits at first
= 5 u
= 5 x 29
= 145
Answer(s): 145