The above histogram represents the marks and number of students in an examination conducted in a school.
Find the ratio of the number of students having marks between 60 - 70 and the total number of students.
1
1 ∶ 5
2
2 ∶ 6
3
1 ∶ 7
4
2 ∶ 9
The above histogram represents the marks and number of students in an examination conducted in a school.
Find the ratio of the number of students having marks between 60 - 70 and the total number of students.