At the train transit terminal, 87.5% of the passengers were male and the rest were female. After 340 female passengers entered the terminal, the percentage of the number of female passengers became 55%. Find the number of female passengers at the terminal at first.
| |
Male |
Female |
| Before |
7x9 =
63 u |
1x9 =
9 u |
| Change |
No change |
+ 340 |
| After |
9x7 =
63 u |
11x7 =
77 u |
87.5% =
8751000 =
7855% =
55100 =
1120The number of male passengers at first and in the end remains unchanged. Make the number of male passengers the same. LCM of 7 and 9 is 63.
Number of female passengers who entered the terminal
= 77 u - 9 u
= 68 u
68 u = 340
1 u = 340 ÷ 68 = 5
Number of female passengers at the terminal at first
= 9 u
= 9 x 5
= 45
Answer(s): 45
