PSLEKylie made some puffs to sell.
34 of them were egg puffs and the rest were curry puffs. After selling 300 curry puffs and
56 of the egg puffs, she had
16 of the puffs left. How many puffs did Kylie sell?
|
Egg puffs |
Curry puffs |
Total |
Comparing egg puffs and curry puffs at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 300 |
|
After |
1x1
|
|
|
|
Egg puffs |
Curry puffs |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 300 |
|
After
|
1 u
|
2 u - 300
|
16 x 8 u = 113 u |
The number of egg puffs at first is repeated. Make the number of egg puffs at first the same. LCM of 3 and 6 is 6.
Number of puffs left
= 1 u + 2 u - 300
= 3 u - 300
3 u - 300 = 1
13 u
3 u - 1
13 u = 300
1
23 u = 300
1 u = 300 ÷ 1
23 = 180
Total number of puffs that Kylie sold
= 5 u + 300
= 5 x 180 + 300
= 900 + 300
= 1200
Answer(s): 1200