The correct option is A 15
Given,
Number of students who like english = 2
Number of students who like hindi = 6
Number of students who like science = 1
Number of students who like social science = 3
Number of students who like mathematics = 5
Number of students who like sanskrit = 3
Total Number of students in the class
= (2 +6 +1 +3 +5 +3)
=20
From the bar graph,
The students who prefer Mathematics = 5
Hence, students who do not like Mathematics = 20 - 5 = 15