In Plutarch Enterprises, 70% of the employees are marketers, 20% are engineers, and the rest are managers. Marketers make an average salary of $70,000 a year, and engineers make an average of $80,000. What is the average salary for managers if the average for all employees is also $80,000?
Answers:
A) $80,000 B) $150,000 C) $240,000 D) $290,000 E) $320,000
For sake of ease, let's say there are 10 employees: 7 marketers, 2 engineers, and 1 manager.   Average company salary * Number of employees = Total company salary   &gt;&gt;&gt; $80,000 * 10 = $800,000   Subtract the combined salaries for the marketers (7 * $70,000) and the engineers (2 * $80,000)   &gt;&gt;&gt; $800,000 - $490,000 - $160,000 = $150,000.   The correct answer is $150,000.
<result>B</result>
In Plutarch Enterprises, 70% of the employees are marketers, 20% are engineers, and the rest are managers. Marketers make an average salary of $70,000 a year, and engineers make an average of $80,000. What is the average salary for managers if the average for all employees is also $80,000?