Last week, Asher had a total of 50 yellow and white notebooks. Two weeks later, he sold
23 of all the yellow notebooks and bought another 26 white notebooks. Now he has the same number of yellow and white notebooks. How many notebooks does he have in the end?
| |
Yellow |
White |
Total |
| Before |
3 u |
1 u - 26 |
4 u - 26 |
| Change |
- 2 u |
+ 26 |
|
| After |
1 u |
1 u |
|
Comparing the yellow
and white notebooks in the end |
1 |
1 |
|
Total number of notebooks at first
= 3 u + 1 u - 26
= 4 u - 26
4 u - 26 = 50
4 u = 50 + 26
4 u = 76
1 u = 76 ÷ 4 = 19
Number of notebooks that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 19
= 38
Answer(s): 38
