Now, there are x male employees and 2x female employees.
(2x- 15)/3x=0.625
That is 2x-15 =1.875x.
The solution is x= 120.
3x=3* 120=360
A: At present, * * has 360 employees.
2、
Set the hatch duck x, and then the remaining 33-x.
2x=33-x,x= 1 1。
So the sum of the number of normal ducks and lame ducks is 22.
Normal duck: (32-22)÷(2- 1)= 10.
Lame duck: 22- 10= 12.
A: Hatched ducks 1 1, lame ducks 12.
3、
Set up 45 seats x cars
45x+ 15=60(x- 1)
The solution is x=5.
Number of people: 45*5+ 15=240.
A 45-seat bus needs 5+ 1=6 cars, and the cost is 220*6= 1320 yuan.
A 60-seat bus needs 5- 1=4 cars, and the cost is 300*4= 1200 yuan.
A: For 240 people, it is more cost-effective to choose a 60-seat bus.