PSLEHilda made some puffs to sell.
34 of them were mushroom puffs and the rest were egg puffs. After selling 161 egg puffs and
56 of the mushroom puffs, she had
15 of the puffs left. How many puffs did Hilda sell?
|
Mushroom puffs |
Egg puffs |
Total |
Comparing mushroom puffs and egg puffs at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 161 |
|
After |
1x1
|
|
|
|
Mushroom puffs |
Egg puffs |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 161 |
|
After
|
1 u
|
2 u - 161
|
15 x 8 u = 135 u |
The number of mushroom puffs at first is repeated. Make the number of mushroom puffs at first the same. LCM of 3 and 6 is 6.
Number of puffs left
= 1 u + 2 u - 161
= 3 u - 161
3 u - 161 = 1
35 u
3 u - 1
35 u = 161
1
25 u = 161
1 u = 161 ÷ 1
25 = 115
Total number of puffs that Hilda sold
= 5 u + 161
= 5 x 115 + 161
= 575 + 161
= 736
Answer(s): 736