SOLUTION: In a survey of a TriDelt chapter with 50 members, 21 were taking mathematics, 30 were taking English, and 6 were taking both. How many were not taking either of these subjects?

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Question 892255: In a survey of a TriDelt chapter with 50 members, 21 were taking mathematics, 30 were taking English, and 6 were taking both. How many were not taking either of these subjects?
Answer by LinnW(1048) About Me  (Show Source):
You can put this solution on YOUR website!
21 + 30 - 6 = 45 , the number taking english or mathematics
The subtraction of 6 avoids double counting.
Since there are 50 chapter members, 50 - 45 = 5 gives
us the number taking neither math or english.