PSLEYen made some puffs to sell.
34 of them were chicken puffs and the rest were kaya puffs. After selling 230 kaya puffs and
56 of the chicken puffs, she had
16 of the puffs left. How many puffs did Yen sell?
|
Chicken puffs |
Kaya puffs |
Total |
Comparing chicken puffs and kaya puffs at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 230 |
|
After |
1x1
|
|
|
|
Chicken puffs |
Kaya puffs |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 230 |
|
After
|
1 u
|
2 u - 230
|
16 x 8 u = 113 u |
The number of chicken puffs at first is repeated. Make the number of chicken puffs at first the same. LCM of 3 and 6 is 6.
Number of puffs left
= 1 u + 2 u - 230
= 3 u - 230
3 u - 230 = 1
13 u
3 u - 1
13 u = 230
1
23 u = 230
1 u = 230 ÷ 1
23 = 138
Total number of puffs that Yen sold
= 5 u + 230
= 5 x 138 + 230
= 690 + 230
= 920
Answer(s): 920