PSLEAt first, Leah had a total of 58 brown and gold balloons. 20 gold balloons burst. She then increased the number of brown balloons by 80%. After that, Leah had a total of 46 balloons. How many gold balloons did she have at first?
|
Brown |
Gold |
Total |
Before |
5 u |
|
58 |
Change |
+ 4 u |
- 20 |
- 12 |
After |
9 u |
|
46 |
80100 =
45Decrease in the number of balloons
= 58 - 46
= 12
4 u = 20 - 12
4 u = 8
1 u = 8 ÷ 4 = 2
Number of brown balloons at first
= 5 u
= 5 x 2
= 10
Number of gold balloons at first
= 58 - 10
= 48
Answer(s): 48