At the ferry transit terminal, 62.5% of the passengers were male and the rest were female. After 170 female passengers entered the terminal, the percentage of the number of female passengers became 80%. Find the number of female passengers at the terminal at first.
| |
Male |
Female |
| Before |
5x1 =
5 u |
3x1 =
3 u |
| Change |
No change |
+ 170 |
| After |
1x5 =
5 u |
4x5 =
20 u |
62.5% =
6251000 =
5880% =
80100 =
45The number of male passengers at first and in the end remains unchanged. Make the number of male passengers the same. LCM of 5 and 1 is 5.
Number of female passengers who entered the terminal
= 20 u - 3 u
= 17 u
17 u = 170
1 u = 170 ÷ 17 = 10
Number of female passengers at the terminal at first
= 3 u
= 3 x 10
= 30
Answer(s): 30
