Question

during summer vacation , 35 students of class 12th attended computer classes.25 students coaching classes for entrance exam and 15 both find how many students attend neither if the classes strength was 50

Answer 1

no. of student attended for CS = 35
”"""""""""""""""""""""""""""" coatching = 25
"""""""""""""""""""""""""""""" both = 15
"""""""""""""""""""""""""""""" none = x ----(let)

total no. of students = 50
CS + coatching classes - both + x = 50
35 + 25 - 15 + x = 50
60-15 + x = 50
45 + x = 50
x = 50-45
x = 5

Answer 2

5 is the answer.....