At the airport transit terminal, 62.5% of the passengers were male and the rest were female. After 1140 female passengers entered 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 |
5x3 = 15 u |
3x3 = 9 u |
Change |
No change |
+ 1140 |
After |
3x5 = 15 u |
17x5 = 85 u |
62.5% =
6251000 =
5885% =
85100 =
1720The number of male passengers at first and in the end remains unchanged. Make the number of male passengers the same. LCM of 5 and 3 is 15.
Number of female passengers who entered the terminal
= 85 u - 9 u
= 76 u
76 u = 1140
1 u = 1140 ÷ 76 = 15
Number of female passengers at the terminal at first
= 9 u
= 9 x 15
= 135
Answer(s): 135