40% of the employees in a factory are workers. All the remaining employees are executives. The annual income of each worker is $390.The annual income of each executive is $420. What is the average annual income of all the employees in the factory together?
A. 390
B. 405
C. 408
D. 415
E. 420
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Averages...........
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saurabhmahajan
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Say total of 10 emp.
so 40% means 4 emp have annual income of 390 = 4*390
remaining 60% means 6 emp have annual income of 420 = 6*420
therefore (4*390)+(6*420)/10 = 408
so 40% means 4 emp have annual income of 390 = 4*390
remaining 60% means 6 emp have annual income of 420 = 6*420
therefore (4*390)+(6*420)/10 = 408
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Saurabh Mahajan
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Saurabh Mahajan
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Testluv
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No math:
If 50% of the employees were workers, and the other 50% execs, then the average of all workers would be dead center between the two salaries: 405. However, since 60% are execs, the average must be tilted a little bit towards the execs: only choice C fits the bill.
If 50% of the employees were workers, and the other 50% execs, then the average of all workers would be dead center between the two salaries: 405. However, since 60% are execs, the average must be tilted a little bit towards the execs: only choice C fits the bill.
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