Jenson had a total of 150 grey and yellow balloons. After giving away
12 of the grey balloons and 48 yellow balloons, there was an equal number of grey and yellow balloons left. How many grey balloons did he have at first?
| |
Grey balloons |
Yellow balloons |
Total |
| Before |
2 u |
1 u + 48 |
150 |
| Change |
- 1 u |
- 48 |
|
| After |
1 u |
1 u |
|
Total number of balloons at first
= 2 u + 1 u + 48
= 3 u + 48
3 u + 48 = 150
3 u = 150 - 48
3 u = 102
1 u = 102 ÷ 3 = 34
Number of grey balloons that Jenson had at first
= 2 u
= 2 x 34
= 68
Answer(s): 68
