PSLEEva made some puffs to sell.
34 of them were curry puffs and the rest were chicken puffs. After selling 220 chicken puffs and
56 of the curry puffs, she had
16 of the puffs left. How many puffs did Eva sell?
|
Curry puffs |
Chicken puffs |
Total |
Comparing curry puffs and chicken puffs at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 220 |
|
After |
1x1
|
|
|
|
Curry puffs |
Chicken puffs |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 220 |
|
After
|
1 u
|
2 u - 220
|
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 - 220
= 3 u - 220
3 u - 220 = 1
13 u
3 u - 1
13 u = 220
1
23 u = 220
1 u = 220 ÷ 1
23 = 132
Total number of puffs that Eva sold
= 5 u + 220
= 5 x 132 + 220
= 660 + 220
= 880
Answer(s): 880