Mathematics · Set Theory
In an office, there are 150 employees. The following information is given about their use of three software programs A, B, and C: - 90 employees use Software A - 70 employees use Software B - 60 employees use Software C - 40 employees use both Software A and B - 35 employees use both Software B and C - 30 employees use both Software A and C - 20 employees use all three software programs How many employees use only Software A?
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40
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