Introduction:
The given statement provides information about the percentage of female employees, their marital status, and the number of female workers who are not members of the trade union.

Percentage of Female Employees:
According to the statement, 20% of the total employees are females. This means that if there are 100 employees in total, then 20 of them are females.

Marital Status of Female Employees:
Out of these 20 female employees, 40% of them are married. This means that if there are 20 female employees, then 8 of them are married.

Number of Female Workers not Members of Trade Union:
The statement mentions that 30 female workers are not members of the trade union. However, it is not clear whether these 30 workers are a part of the 20 female employees or not. If we assume that all 30 workers are female employees, then:

- Out of the 20 female employees, 30-8=12 female employees are not members of the trade union.
- This means that 60% of the female employees (12 out of 20) are not members of the trade union.

Conclusion:
In summary, the statement provides information about the percentage of female employees, their marital status, and the number of female workers who are not members of the trade union. However, the exact number of female employees and their distribution is not given, which makes it difficult to draw accurate conclusions.

Plz provide complete question.