The number of male and female candidates who applied for jobs as nurses at county general hospital was 100 and 400 respectively. the final selection process led to 30 male nurses and 200 female nurses being selected. the ratio of the male-to-female selection rate is and indicates a likelihood of adverse impact against male nurses.

 The answer is 3 : 5.

Step-by-step explanation:  Given that -

the number of male candidates who applied for the job at country general hospital was 100 and the number of female nurses who applied for the job at country general hospital was 400.

In the final selection, 30 out of 100 males were selected and 200 out of 400 females were selected.

So, the ratio of the male-to-female selection rate is

This ratio indicates a likelihood of adverse impact against male nurses. Also, half of the female nurses that applied are selected but the number of male nurses selected is less than that applied for the post.

Thus, the answer is 3 : 5.