PSLEAt first, Leah had a total of 74 blue and white balloons. 13 white balloons burst. She then increased the number of blue balloons by 75%. After that, Leah had a total of 82 balloons. How many white balloons did she have at first?
|
Blue |
White |
Total |
Before |
4 u |
|
74 |
Change |
+ 3 u |
- 13 |
+ 8 |
After |
7 u |
|
82 |
75100 =
34Increase in the number of balloons
= 82 - 74
= 8
3 u = 8 + 13
3 u = 21
1 u = 21 ÷ 3 = 7
Number of blue balloons at first
= 4 u
= 4 x 7
= 28
Number of white balloons at first
= 74 - 28
= 46
Answer(s): 46