There was an equal number of white and pink balls in a bag at first. After 23 pink balls were taken out and 49 white balls were added into the bag, there was
14 as many pink balls as white balls. Find the number of pink balls in the bag at first.
| |
White balls |
Pink balls |
| Before |
4 u - 49 |
1 u + 23 |
| Change |
+ 49 |
- 23 |
| After |
4 u |
1 u |
The number of white and pink balls in the bag is the same at first.
4 u - 49 = 1 u + 23
4 u - 1 u = 23 + 49
3 u = 72
1 u = 72 ÷ 3 = 24
Number of pink balls at first
= 1 u + 23
= 24 + 23
= 47
Answer(s)47
