PSLEJulie made some buns to sell.
34 of them were curry buns and the rest were mushroom buns. After selling 170 mushroom buns and
56 of the curry buns, she had
16 of the buns left. How many buns did Julie sell?
|
Curry buns |
Mushroom buns |
Total |
Comparing curry buns and mushroom buns at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 170 |
|
After |
1x1
|
|
|
|
Curry buns |
Mushroom buns |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 170 |
|
After
|
1 u
|
2 u - 170
|
16 x 8 u = 113 u |
The number of curry buns at first is repeated. Make the number of curry buns at first the same. LCM of 3 and 6 is 6.
Number of buns left
= 1 u + 2 u - 170
= 3 u - 170
3 u - 170 = 1
13 u
3 u - 1
13 u = 170
1
23 u = 170
1 u = 170 ÷ 1
23 = 102
Total number of buns that Julie sold
= 5 u + 170
= 5 x 102 + 170
= 510 + 170
= 680
Answer(s): 680