At the train transit terminal, 87.5% of the passengers were female and the rest were male. After 552 male passengers entered the terminal, the percentage of the number of male passengers became 70%. Find the number of male passengers at the terminal at first.
| |
Female |
Male |
| Before |
7x3 =
21 u |
1x3 =
3 u |
| Change |
No change |
+ 552 |
| After |
3x7 =
21 u |
7x7 =
49 u |
87.5% =
8751000 =
7870% =
70100 =
710The number of female passengers at first and in the end remains unchanged. Make the number of female passengers the same. LCM of 7 and 3 is 21.
Number of male passengers who entered the terminal
= 49 u - 3 u
= 46 u
46 u = 552
1 u = 552 ÷ 46 = 12
Number of male passengers at the terminal at first
= 3 u
= 3 x 12
= 36
Answer(s): 36
