Question
Find the average number of employees in HR, Sales and
Operation together. Read the following information carefully and answer the given questions: There are total 150 employees in four different department’s i.e, Management, HR, Sale and Operation in a company. Total employees in HR are 33(1/3)% of total employees in the company and ratio of total employees in Management to Sale is 1:3. Total employees in Operation are 20% less than that of in HR department.Solution
Total number of employees in HR department = 150 × (1/3) = 50 Let total employees in Management and Sale be x and 3x respectively. And, total employees in Operation = 50 × (1 – 20/100) = 40 => 50 + x + 3x + 40 = 150 => 4x = 60 => x = 15 
Required average = (50 + 45 + 40)/3 = 45
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