Penelope had 57 blueberry and vanilla puffs. After giving away
14 of her blueberry puffs and 15 of her vanilla puffs, she had an equal number of blueberry and vanilla puffs. How many vanilla puffs did she have at first?
| |
Blueberry puffs |
Vanilla puffs |
Total |
| Before |
4 u |
3 u + 15 |
57 |
| Change |
- 1 u |
- 15 |
|
| After |
3 u |
3 u |
|
Fraction of the blueberry puffs left
= 1 -
14=
34 The number of blueberry and vanilla puffs in the end is the same.
Total number of puffs at first
= 4 u + 3 u + 15
= 7 u + 15
7 u + 15 = 57
7 u = 57 - 15
7 u = 42
1 u = 42 ÷ 7 = 6
Number of vanilla puffs at first
= 3 u + 15
= 3 x 6 + 15
= 18 + 15
= 33
Answer(s): 33
