Average Salary Question
Help please with math question:
Last year the avg. salary of the 10 employees of Company X was $42,800. What is the avg. salary of the same 10 employees this year?
1) For 8 of the 10 employees, this year's salary is 15 percent greater than last year's salary.
2) For 2 of the 10 employees, this year's salary is the same as last year's salary
Why is it wrong to think that we will be able to calculate this year's avg. given last year's avgerage?
IThat is, why is the answer not C?
statement 1
1.15 (42.8) x 8
+
statement 2
(42.8) (2)
= the sum of the salaries.
That sum divided by 10 = the this year's avg.
OA however, says it is E that is correct.
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