Last week, Glen had a total of 294 blue and grey pencils. Two weeks later, he sold
34 of all the blue pencils and 24 grey pencils. Now he has the same number of blue and grey pencils. How many pencils does he have in the end?
| |
Blue |
Grey |
Total |
| Before |
4 u |
1 u + 24 |
5 u + 24 |
| Change |
- 3 u |
- 24 |
|
| After |
1 u |
1 u |
|
Comparing the blue
and grey pencils in the end |
1 |
1 |
|
Total number of pencils at first
= 4 u + 1 u + 24
= 5 u + 24
5 u + 24 = 294
5 u = 294 - 24
5 u = 270
1 u = 270 ÷ 5 = 54
Number of pencils that he has in the end
= 1 u + 1 u
= 2 u
= 2 x 54
= 108
Answer(s): 108
