PRC-2 · Chapter 8 · Question 32 of 60
A company has two departments. Department A has 20 employees with an average salary of Rs. 50,000. Department B has 30 employees with an average salary of Rs. 60,000. What is the combined mean salary?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) Rs. 56,000
Explanation
The combined mean is found using (n1x̄1 + n2x̄2) / (n1 + n2). Here: (20 * 50,000) + (30 * 60,000) = 1,000,000 + 1,800,000 = 2,800,000. Dividing by the total 50 employees yields Rs. 56,000.
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