At the airport transit terminal, 62.5% of the passengers were female and the rest were male. After 51 male passengers entered the terminal, the percentage of the number of male passengers became 80%. Find the number of male passengers at the terminal at first.
|
Female |
Male |
Before |
5x1 = 5 u |
3x1 = 3 u |
Change |
No change |
+ 51 |
After |
1x5 = 5 u |
4x5 = 20 u |
62.5% =
6251000 =
5880% =
80100 =
45The number of female passengers at first and in the end remains unchanged. Make the number of female passengers the same. LCM of 5 and 1 is 5.
Number of male passengers who entered the terminal
= 20 u - 3 u
= 17 u
17 u = 51
1 u = 51 ÷ 17 = 3
Number of male passengers at the terminal at first
= 3 u
= 3 x 3
= 9
Answer(s): 9