At the airport transit terminal, 12.5% of the passengers were male and the rest were female. After 32 female passengers left the terminal, the percentage of the number of female passengers became 85%. Find the number of female passengers at the terminal at first.
|
Male |
Female |
Before |
1x3 = 3 u |
7x3 = 21 u |
Change |
No change |
- 32 |
After |
3x1 = 3 u |
17x1 = 17 u |
12.5% =
1251000 =
1885% =
85100 =
1720The number of male passengers at first and in the end remains unchanged. Make the number of male passengers the same. LCM of 1 and 3 is 3.
Number of female passengers who left the terminal
= 21 u - 17 u
= 4 u
4 u = 32
1 u = 32 ÷ 4 = 8
Number of female passengers at the terminal at first
= 21 u
= 21 x 8
= 168
Answer(s): 168