Consider a small unit of a factory where there are `5` employees : a supervisor and four labourers. The labourers draw a salary of `Rs 5,000` per month each while the supervisor gets `Rs 15,000` per month. Calculate the mean, median and mode of the salaries of this unit of the factory.

Options

A. mean = rs `7000`, median = rs `5000`, mode = rs `5000`
B. mean = rs `6000`, median = rs `5000`, mode = rs `4000`
C. mean = rs `8000`, median = rs `8000`, mode = rs `6000`
D. mean = rs `7600`, median = rs `5670`, mode = rs `5900`

Answer

A

Explanation

Salary of supervisor in rupees `= 15000`

Salary of `4` labourers in rupees `= 5000`

So, the salaries of all employees in ascending order can be represented as

`5000,5000,5000,5000,15000`

`Mean = `Sum of all observations`/`Total number of observations

`Mean = (5000+5000+5000+5000+15000)/5 = 35000/5 = `Rs `7000`


Median can be obtained by finding the middle term.

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