PSLEJulie made some puffs to sell.
34 of them were chocolate puffs and the rest were kaya puffs. After selling 217 kaya puffs and
56 of the chocolate puffs, she had
15 of the puffs left. How many puffs did Julie sell?
|
Chocolate puffs |
Kaya puffs |
Total |
Comparing chocolate puffs and kaya puffs at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 217 |
|
After |
1x1
|
|
|
|
Chocolate puffs |
Kaya puffs |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 217 |
|
After
|
1 u
|
2 u - 217
|
15 x 8 u = 135 u |
The number of chocolate puffs at first is repeated. Make the number of chocolate puffs at first the same. LCM of 3 and 6 is 6.
Number of puffs left
= 1 u + 2 u - 217
= 3 u - 217
3 u - 217 = 1
35 u
3 u - 1
35 u = 217
1
25 u = 217
1 u = 217 ÷ 1
25 = 155
Total number of puffs that Julie sold
= 5 u + 217
= 5 x 155 + 217
= 775 + 217
= 992
Answer(s): 992