PSLEAt first, Leah had a total of 62 grey and gold balloons. 10 gold balloons burst. She then increased the number of grey balloons by 80%. After that, Leah had a total of 76 balloons. How many gold balloons did she have at first?
|
Grey |
Gold |
Total |
Before |
5 u |
|
62 |
Change |
+ 4 u |
- 10 |
+ 14 |
After |
9 u |
|
76 |
80100 =
45Increase in the number of balloons
= 76 - 62
= 14
4 u = 14 + 10
4 u = 24
1 u = 24 ÷ 4 = 6
Number of grey balloons at first
= 5 u
= 5 x 6
= 30
Number of gold balloons at first
= 62 - 30
= 32
Answer(s): 32