There was an equal number of yellow and pink balls in a bag at first. After 25 pink balls were taken out and 49 yellow balls were added into the bag, there was
13 as many pink balls as yellow balls. Find the number of pink balls in the bag at first.
| |
Yellow balls |
Pink balls |
| Before |
3 u - 49 |
1 u + 25 |
| Change |
+ 49 |
- 25 |
| After |
3 u |
1 u |
The number of yellow and pink balls in the bag is the same at first.
3 u - 49 = 1 u + 25
3 u - 1 u = 25 + 49
2 u = 74
1 u = 74 ÷ 2 = 37
Number of pink balls at first
= 1 u + 25
= 37 + 25
= 62
Answer(s)62
