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.