PSLEAt first, Leah had a total of 67 silver and white balloons. 19 white balloons burst. She then increased the number of silver balloons by 75%. After that, Leah had a total of 66 balloons. How many white balloons did she have at first?
|
Silver |
White |
Total |
Before |
4 u |
|
67 |
Change |
+ 3 u |
- 19 |
- 1 |
After |
7 u |
|
66 |
75100 =
34Decrease in the number of balloons
= 67 - 66
= 1
3 u = 19 - 1
3 u = 18
1 u = 18 ÷ 3 = 6
Number of silver balloons at first
= 4 u
= 4 x 6
= 24
Number of white balloons at first
= 67 - 24
= 43
Answer(s): 43