PSLENatalie made some buns to sell.
34 of them were lotus paste buns and the rest were chicken buns. After selling 160 chicken buns and
56 of the lotus paste buns, she had
16 of the buns left. How many buns did Natalie sell?
|
Lotus paste buns |
Chicken buns |
Total |
Comparing lotus paste buns and chicken buns at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 160 |
|
After |
1x1
|
|
|
|
Lotus paste buns |
Chicken buns |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 160 |
|
After
|
1 u
|
2 u - 160
|
16 x 8 u = 113 u |
The number of lotus paste buns at first is repeated. Make the number of lotus paste buns at first the same. LCM of 3 and 6 is 6.
Number of buns left
= 1 u + 2 u - 160
= 3 u - 160
3 u - 160 = 1
13 u
3 u - 1
13 u = 160
1
23 u = 160
1 u = 160 ÷ 1
23 = 96
Total number of buns that Natalie sold
= 5 u + 160
= 5 x 96 + 160
= 480 + 160
= 640
Answer(s): 640