At the train transit terminal, 87.5% of the passengers were female and the rest were male. After 544 male passengers entered the terminal, the percentage of the number of male passengers became 55%. Find the number of male passengers at the terminal at first.
|
Female |
Male |
Before |
7x9 = 63 u |
1x9 = 9 u |
Change |
No change |
+ 544 |
After |
9x7 = 63 u |
11x7 = 77 u |
87.5% =
8751000 =
7855% =
55100 =
1120The number of female passengers at first and in the end remains unchanged. Make the number of female passengers the same. LCM of 7 and 9 is 63.
Number of male passengers who entered the terminal
= 77 u - 9 u
= 68 u
68 u = 544
1 u = 544 ÷ 68 = 8
Number of male passengers at the terminal at first
= 9 u
= 9 x 8
= 72
Answer(s): 72