Question

The table given below gives the marks of 160 students in the school.

Marks	20 – 30	30 – 40	40 – 50	50 – 60	60 – 70	70 – 80	80 – 90	90 – 100
No. of students	8	10	15	25	30	38	24	10

How many students are getting above 80 marks.

Answer 1

To find the number of students getting above 80 marks, we need to look at the class intervals that represent marks greater than 80.

These intervals are:

80 – 90 marks

90 – 100 marks

From the given table:

Number of students scoring 80 – 90 marks = 24

Number of students scoring 90 – 100 marks = 10

Total calculation

Total students = 24 + 10 = 34