PSLEAt first, Leah had a total of 61 blue and green balloons. 12 green balloons burst. She then increased the number of blue balloons by 75%. After that, Leah had a total of 58 balloons. How many green balloons did she have at first?
|
Blue |
Green |
Total |
Before |
4 u |
|
61 |
Change |
+ 3 u |
- 12 |
- 3 |
After |
7 u |
|
58 |
75100 =
34Decrease in the number of balloons
= 61 - 58
= 3
3 u = 12 - 3
3 u = 9
1 u = 9 ÷ 3 = 3
Number of blue balloons at first
= 4 u
= 4 x 3
= 12
Number of green balloons at first
= 61 - 12
= 49
Answer(s): 49