The ratio of the number of female employees of levels 'B' and 'C' taken together to the number of male employees of levels 'B' and 'C' taken together, is:

Study the pie charts and answer the question.

In a manufacturing firm there are a total of 150 employees of levels 'A', 'B', and 'C'. Number of employees of different levels have been presented in Pie-Chart I. Number of female employees of different levels have been shown in Pie-Chart II. 40% of the employees are females.