The correct answer is C. 48.
The labour turnover rate is the percentage of employees who leave a company within a given period of time. It is calculated by dividing the number of employees who leave by the average number of employees during the period.
In this case, the labour turnover rates are 20%, 10% and 6% respectively under Flux method, Replacement method and Separation method. This means that 20% of the employees left the company under the Flux method, 10% of the employees left the company under the Replacement method and 6% of the employees left the company under the Separation method.
The number of workers replaced during the quarter is 80. This means that 80 new employees were hired during the quarter.
To calculate the number of workers left and discharged, we need to add the labour turnover rates and the number of workers replaced.
20% + 10% + 6% = 36%
36% x 80 = 28.8
28.8 = 48 rounded down
Therefore, the number of workers left and discharged is 48.