PSLEFanny made some puffs to sell.
34 of them were beef puffs and the rest were kaya puffs. After selling 275 kaya puffs and
56 of the beef puffs, she had
16 of the puffs left. How many puffs did Fanny sell?
|
Beef puffs |
Kaya puffs |
Total |
Comparing beef puffs and kaya puffs at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 275 |
|
After |
1x1
|
|
|
|
Beef puffs |
Kaya puffs |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 275 |
|
After
|
1 u
|
2 u - 275
|
16 x 8 u = 113 u |
The number of beef puffs at first is repeated. Make the number of beef puffs at first the same. LCM of 3 and 6 is 6.
Number of puffs left
= 1 u + 2 u - 275
= 3 u - 275
3 u - 275 = 1
13 u
3 u - 1
13 u = 275
1
23 u = 275
1 u = 275 ÷ 1
23 = 165
Total number of puffs that Fanny sold
= 5 u + 275
= 5 x 165 + 275
= 825 + 275
= 1100
Answer(s): 1100