Total employees earning ≥ $50,000 per year = 40% of 35,000 = 14,000
% of employees earning ≥ $50,000 per year for company X = \(\frac{Number of employees earning ≥ $50,000 per year}{Total number of employees working in Company X}\)
(1) 5,600 of the residents of Town T work for company X
Since there’s a variable possibility of number of employees earning ≥ $50,000 per year, it may be 50% or 20% or 5%. Hence
INSUFFICIENT.
(2) Company X has 1,800 employees who earn at least $50,000 per year
Number of employees earning ≥ $50,000 per year for company X = 1,800
Total number of employees working for company X can be 1,800 or 10,000 or 18,000. Hence
INSUFFICIENT.
Together 1) and 2)
% of employees earning ≥ $50,000 per year for company X = \(\frac{Number of employees earning ≥ $50,000 per year}{Total number of employees working in Company X}\)
\(= \frac{1,800}{5,600}\)
= 32.14%
SUFFICIENT.
Answer (C).
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