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14 Oct 2019, 09:19
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
94% (01:29) correct
6%
(01:31)
wrong
based on 243
sessions
History
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Not Attempted Yet
Of the 50 employees of a certain company, 30 earn an average (arithmetic mean) salary of $30,000, 15 earn an average salary of $40,000, and 5 earn an average salary of $60,000. What is the average salary earned by the employees of this company?
A. $30,000
B. $36,000
C. $40,000
D. $45,000
E. $50,000
A. $30,000
B. $36,000
C. $40,000
D. $45,000
E. $50,000
14 Oct 2019, 09:25
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(30*30000 + 15*40000 + 5*60000) / 30+15+5 = 36000
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siddharthkapoor
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14 Oct 2019, 09:43
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Bunuel
Of the 50 employees of a certain company, 30 earn an average (arithmetic mean) salary of $30,000, 15 earn an average salary of $40,000, and 5 earn an average salary of $60,000. What is the average salary earned by the employees of this company?
A. $30,000
B. $36,000
C. $40,000
D. $45,000
E. $50,000
A. $30,000
B. $36,000
C. $40,000
D. $45,000
E. $50,000
Sum of salaries of all employees= (30*30000+15*40000+5*60000)
Total number of employees=30+15+5
Thus, average salary= \(\frac{30*30000+15*40000+5*60000}{30+15+5}\)=36000
Therefore, the correct answer is option B.
