At the bus transit terminal, 87.5% of the passengers were female and the rest were male. After 38 male passengers entered the terminal, the percentage of the number of male passengers became 60%. Find the number of male passengers at the terminal at first.
|
Female |
Male |
Before |
7x2 = 14 u |
1x2 = 2 u |
Change |
No change |
+ 38 |
After |
2x7 = 14 u |
3x7 = 21 u |
87.5% =
8751000 =
7860% =
60100 =
35The number of female passengers at first and in the end remains unchanged. Make the number of female passengers the same. LCM of 7 and 2 is 14.
Number of male passengers who entered the terminal
= 21 u - 2 u
= 19 u
19 u = 38
1 u = 38 ÷ 19 = 2
Number of male passengers at the terminal at first
= 2 u
= 2 x 2
= 4
Answer(s): 4