Luis had a total of 134 purple and grey stars. After giving away
12 of the purple stars and 62 grey stars, there was an equal number of purple and grey stars left. How many purple stars did he have at first?
| |
Purple stars |
Grey stars |
Total |
| Before |
2 u |
1 u + 62 |
134 |
| Change |
- 1 u |
- 62 |
|
| After |
1 u |
1 u |
|
Total number of stars at first
= 2 u + 1 u + 62
= 3 u + 62
3 u + 62 = 134
3 u = 134 - 62
3 u = 72
1 u = 72 ÷ 3 = 24
Number of purple stars that Luis had at first
= 2 u
= 2 x 24
= 48
Answer(s): 48
