Sam had a total of 124 pink and black balls. After giving away
38 of the pink balls and 59 black balls, there was an equal number of pink and black balls left. How many pink balls did he have at first?
| |
Pink balls |
Black balls |
Total |
| Before |
8 u |
5 u + 59 |
124 |
| Change |
- 3 u |
- 59 |
|
| After |
5 u |
5 u |
|
Total number of balls at first
= 8 u + 5 u + 59
= 13 u + 59
13 u + 59 = 124
13 u = 124 - 59
13 u = 65
1 u = 65 ÷ 13 = 5
Number of pink balls that Sam had at first
= 8 u
= 8 x 5
= 40
Answer(s): 40
