At the airport transit terminal, 37.5% of the passengers were male and the rest were female. After 16 female passengers entered the terminal, the percentage of the number of female passengers became 75%. Find the number of female passengers at the terminal at first.
| |
Male |
Female |
| Before |
3x1 =
3 u |
5x1 =
5 u |
| Change |
No change |
+ 16 |
| After |
1x3 =
3 u |
3x3 =
9 u |
37.5% =
3751000 =
3875% =
75100 =
34The number of male passengers at first and in the end remains unchanged. Make the number of male passengers the same. LCM of 3 and 1 is 3.
Number of female passengers who entered the terminal
= 9 u - 5 u
= 4 u
4 u = 16
1 u = 16 ÷ 4 = 4
Number of female passengers at the terminal at first
= 5 u
= 5 x 4
= 20
Answer(s): 20
