At the airport transit terminal, 87.5% of the passengers were male and the rest were female. After 84 female passengers entered the terminal, the percentage of the number of female passengers became 50%. Find the number of female passengers at the terminal at first.
| |
Male |
Female |
| Before |
7x1 =
7 u |
1x1 =
1 u |
| Change |
No change |
+ 84 |
| After |
1x7 =
7 u |
1x7 =
7 u |
87.5% =
8751000 =
7850% =
50100 =
12The number of male passengers at first and in the end remains unchanged. Make the number of male passengers the same. LCM of 7 and 1 is 7.
Number of female passengers who entered the terminal
= 7 u - 1 u
= 6 u
6 u = 84
1 u = 84 ÷ 6 = 14
Number of female passengers at the terminal at first
= 1 u
= 1 x 14
= 14
Answer(s): 14
