Arithmetic mean of salary of 100 males in a company is ₹ 20,000 per month and that of 50 females is ₹…
The combined mean salary is ₹ 19,000 per month. The total monthly salary is \(100(20000)+50(17000)\) \(=2850000\), and dividing by \(100+50=150\) gives \(2850000/150=19000\).
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Arithmetic mean of salary of 100 males in a company is ₹ 20,000 per month and that of 50 females is ₹ 17,000 per month. The arithmetic mean of salary of the combined group of males and females in the company is __________ per month.
Answer and explanation
Correct answer B
The combined mean salary is ₹ 19,000 per month. The total monthly salary is , and dividing by gives .
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Maharashtra and Goa SET (MH SET)