PSLEAt first, Leah had a total of 53 purple and green balloons. 17 green balloons burst. She then increased the number of purple balloons by 80%. After that, Leah had a total of 52 balloons. How many green balloons did she have at first?
|
Purple |
Green |
Total |
Before |
5 u |
|
53 |
Change |
+ 4 u |
- 17 |
- 1 |
After |
9 u |
|
52 |
80100 =
45Decrease in the number of balloons
= 53 - 52
= 1
4 u = 17 - 1
4 u = 16
1 u = 16 ÷ 4 = 4
Number of purple balloons at first
= 5 u
= 5 x 4
= 20
Number of green balloons at first
= 53 - 20
= 33
Answer(s): 33