PSLEAt first, Leah had a total of 46 gold and brown balloons. 15 brown balloons burst. She then increased the number of gold balloons by 75%. After that, Leah had a total of 40 balloons. How many brown balloons did she have at first?
|
Gold |
Brown |
Total |
Before |
4 u |
|
46 |
Change |
+ 3 u |
- 15 |
- 6 |
After |
7 u |
|
40 |
75100 =
34Decrease in the number of balloons
= 46 - 40
= 6
3 u = 15 - 6
3 u = 9
1 u = 9 ÷ 3 = 3
Number of gold balloons at first
= 4 u
= 4 x 3
= 12
Number of brown balloons at first
= 46 - 12
= 34
Answer(s): 34