PSLEAt first, Leah had a total of 56 green and gold balloons. 17 gold balloons burst. She then increased the number of green balloons by 80%. After that, Leah had a total of 55 balloons. How many gold balloons did she have at first?
|
Green |
Gold |
Total |
Before |
5 u |
|
56 |
Change |
+ 4 u |
- 17 |
- 1 |
After |
9 u |
|
55 |
80100 =
45Decrease in the number of balloons
= 56 - 55
= 1
4 u = 17 - 1
4 u = 16
1 u = 16 ÷ 4 = 4
Number of green balloons at first
= 5 u
= 5 x 4
= 20
Number of gold balloons at first
= 56 - 20
= 36
Answer(s): 36