PSLEAt first, Leah had a total of 66 gold and white balloons. 19 white balloons burst. She then increased the number of gold balloons by 75%. After that, Leah had a total of 74 balloons. How many white balloons did she have at first?
|
Gold |
White |
Total |
Before |
4 u |
|
66 |
Change |
+ 3 u |
- 19 |
+ 8 |
After |
7 u |
|
74 |
75100 =
34Increase in the number of balloons
= 74 - 66
= 8
3 u = 8 + 19
3 u = 27
1 u = 27 ÷ 3 = 9
Number of gold balloons at first
= 4 u
= 4 x 9
= 36
Number of white balloons at first
= 66 - 36
= 30
Answer(s): 30