In a survey of a TriDelta chapter with 46 members, 11 were taking mathematics, 36 were taking English, and 10 were taking both. How many were not taking either of these subjects?
A) 11
B) 6
C) 36
D) 9
E) 10

Question

In a survey of a TriDelta chapter with 46 members, 11 were taking mathematics, 36 were taking English, and 10 were taking both. How many were not taking either of these subjects? ​
A) 11
B) 6
C) 36
D) 9
E) 10

Quizplus · Accepted Answer

We can use the formula:

total = group A + group B - both + neither

Substituting the given values, we get:

46 = 11 + 36 - 10 + neither

Simplifying, we get:

46 = 37 + neither

therefore neither = 46 - 37 = 9

Hence, 9 members were not taking either subject. The answer is D (9).

In a Survey of a TriDelta Chapter with 46 Members