Mary baked 128 puffs.
58 of the puffs were chocolate puffs. The rest were mango puffs. She gave an equal number of chocolate puffs and mango puffs away and had 5 times as many chocolate puffs as mango puffs left. How many puffs did she give away?
| |
Chocolate puffs |
Mango puffs |
Difference |
| Before |
5x2 =
10 u |
3x2 =
6 u |
2x2 =
4 u |
| Change |
- 5 u |
- 5 u |
|
| After |
5x1 =
5 u |
1x1 =
1 u |
4x1 =
4 u |
Since Mary gave away an equal number of chocolate puffs and mango puffs, the difference in the number of chocolate puffs and mango puffs remains unchanged. Make the difference in the chocolate puffs and mango puffs the same. LCM of 2 and 4 is 4.
Total number of puffs at first
= 10 u + 6 u
= 16 u
16 u = 128
1 u = 128 ÷ 16 = 8
Number of puffs that Mary gave away
= 5 u + 5 u
= 10 u
= 10 x 8
= 80
Answer(s): 80
