PSLEFiona made some puffs to sell.
34 of them were curry puffs and the rest were egg puffs. After selling 345 egg puffs and
56 of the curry puffs, she had
16 of the puffs left. How many puffs did Fiona sell?
|
Curry puffs |
Egg puffs |
Total |
Comparing curry puffs and egg puffs at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 345 |
|
After |
1x1
|
|
|
|
Curry puffs |
Egg puffs |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 345 |
|
After
|
1 u
|
2 u - 345
|
16 x 8 u = 113 u |
The number of curry puffs at first is repeated. Make the number of curry puffs at first the same. LCM of 3 and 6 is 6.
Number of puffs left
= 1 u + 2 u - 345
= 3 u - 345
3 u - 345 = 1
13 u
3 u - 1
13 u = 345
1
23 u = 345
1 u = 345 ÷ 1
23 = 207
Total number of puffs that Fiona sold
= 5 u + 345
= 5 x 207 + 345
= 1035 + 345
= 1380
Answer(s): 1380