PSLEAt first, Leah had a total of 48 black and pink balloons. 16 pink balloons burst. She then increased the number of black balloons by 75%. After that, Leah had a total of 38 balloons. How many pink balloons did she have at first?
|
Black |
Pink |
Total |
Before |
4 u |
|
48 |
Change |
+ 3 u |
- 16 |
- 10 |
After |
7 u |
|
38 |
75100 =
34Decrease in the number of balloons
= 48 - 38
= 10
3 u = 16 - 10
3 u = 6
1 u = 6 ÷ 3 = 2
Number of black balloons at first
= 4 u
= 4 x 2
= 8
Number of pink balloons at first
= 48 - 8
= 40
Answer(s): 40