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A certain company's customer service department has five [#permalink]
13 May 2003, 10:37
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A certain company's customer service department has five employees. The hourly wage for each employee ranges from $5 an hour to $20 an hour.
Which of the following could be the average (arithmetic mean) hourly wage
for the customer service employees?
1) $7.50 an hour
2) $9 an hour
3) $16.75 an hour
A. 1 only
B. 2 only
C. 3 only
D. 1 and 2 only
E. 2 and 3 only
Got E as well.
The key is sum of wages of two employees is 5+20 = 25
Now this sume should be subtracted from Average*5 and divide this resulting wage amoung three people such that it does not fall below 5 and fall above 20.