Question

In an examination, question number 1 was attempted by 67 students, question number 2 by 46 students and question number 3 by 40 students. 28 students attempted both question numbers 1 and 2, 8 attempted both question number 2 and 3; 26 attempted both question numbers 1 and 3 and 2 students attempted all the three questions. Find how many attempted question number 1 but not question 2 and 3​

Answer 1

Answer:

14

Step-by-step explanation:

Here, total number of students who attempted question 1 = 67

So, from the diagram

x + 28 + 2 + 23 = 67

x + 53 = 67

 

x = 14