Question

Solve it: In a survey after their sea 190 students wanted to be an engineer, 160 wanted to be a doctor, and 120 wanted to be both. If 300 students were interviewed, how many students wanted to be neither of them?

70 students
80 students
90 students
100 students

Answer 1

To find the number of students who wanted to be neither an engineer nor a doctor, subtract the number of students who wanted to be both from the total number of students interviewed.

Step-by-step explanation:

To find the number of students who wanted to be neither an engineer nor a doctor, we need to subtract the number of students who wanted to be both from the total number of students interviewed.
Total students interviewed: 300

Students who wanted to be engineers: 190

Students who wanted to be doctors: 160

Students who wanted to be both: 120

So, the number of students who wanted to be neither is:

Total students - Students who wanted to be engineers - Students who wanted to be doctors + Students who wanted to be both

= 300 - 190 - 160 + 120 = 70

Therefore, 70 students wanted to be neither an engineer nor a doctor.