Risa made 55 more cream puffs than apple puffs. After she gave away
37 of the cream puffs and
16 of the apple puffs, there were an equal number of cream puffs and apple puffs left. How many cream puffs did she give away?
| |
Cream puffs |
Apple puffs |
Difference |
| Before |
7x5 =
35 u |
6x4 =
24 u |
11 u |
| Change |
- 3x5 =
- 15 u |
- 1x4 =
- 4 u |
|
| After |
4x5 =
20 u |
5x4 =
20 u |
|
Fraction of cream puffs left
= 1 -
37 =
47Fraction of apple puffs left
= 1 -
16 =
56The number of cream puffs and apple puffs in the end is the same. Make the numerators the same. LCM of 5 and 4 is 20.
47 of cream puffs =
56 of apple puffs
2035 of cream puffs =
2024 of apple puffs
Number of more cream puffs than apple puffs at first
= 35 u - 24 u
= 11 u
11 u = 55
1 u = 55 ÷ 11 = 5
Number of cream puffs that Risa gave away
= 35 u - 20 u
= 15 u
= 15 x 5
= 75
Answer(s): 75
