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GMAT Official Study Guide – PS #5 (Level: 300-400)
Problem: The table shows the number of employees at each of four salary levels at Company X. What is the average (arithmetic mean) salary for the 20 employees? Solution: The equation for average is:...
View ArticleGMAT Official Study Guide – PS #14 (Level: 300-400)
Problem: On Monday, a person mailed 8 packages weighing an average (arithmetic mean) of 12 3/8 pounds, and on Tuesday, 4 packages weighing an average of 15 1/4 pounds. What was the average weight, in...
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