Penelope had 56 banana and chocolate chip biscuits. After giving away
17 of her banana biscuits and 17 of her chocolate chip biscuits, she had an equal number of banana and chocolate chip biscuits. How many chocolate chip biscuits did she have at first?
| |
Banana biscuits |
Chocolate Chip biscuits |
Total |
| Before |
7 u |
6 u + 17 |
56 |
| Change |
- 1 u |
- 17 |
|
| After |
6 u |
6 u |
|
Fraction of the banana biscuits left
= 1 -
17=
67 The number of banana and chocolate chip biscuits in the end is the same.
Total number of biscuits at first
= 7 u + 6 u + 17
= 13 u + 17
13 u + 17 = 56
13 u = 56 - 17
13 u = 39
1 u = 39 ÷ 13 = 3
Number of chocolate chip biscuits at first
= 6 u + 17
= 6 x 3 + 17
= 18 + 17
= 35
Answer(s): 35
