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Of the 164 students who took a mathematics​ exam, 72 correctly answered the first​ question, 93 correctly answered the second​ question, and 43 correctly answered both questions. How many students did not answer either of the two questions​ correctly?

Respuesta :

5h3114

Answer:

42

Step-by-step explanation:

the student that correct only the first question

=72-43=29

the student that correct only the second question

=93-43=50

the student that didn't answer either of the two questions

=all students - 29 - 50 - 43

=164-29-50-43 = 42 persons

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