CBSE Class 11-science Answered
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
number 1 and 2, 8 attempted both question number 2 and 3,
26 attempted both question number 1 and 3 and 2 students
attempted all the three questions. Find how many attempted
question number 1 but not question number 2 and 3?
Asked by mesamit | 30 Jul, 2010, 09:50: AM
Expert Answer
Dear Student,
Here, total number of students who attempted question 1 = 67
So, from the diagram
x + 28 + 2 + 23 = 67
x + 53 = 67
x = 14
Regards,
Team Topper Learning
Answered by | 30 Jul, 2010, 04:38: PM
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