Question

Following table shows the marks of Class-ix, Mathematics PT-2 result.
(Total students - 40, out of which Girls are 30 and Boys are 10)
No. Of Students
4
6
2
3
Marks (%age)
0-10
10-20
20-30
30-40
40-50
50/60
60-70
70-80
80-90
90-100
TOTAL
5
3
2
10
3
2.
40
The two students Vani and Anshika, who scored 90-100 % marks in PT-2, got very high marks
in their last class VIII as 495/500 (99%) and 455/500 (91%) respectively.
From observing the above table and data, answer the following questions;
4 Marks
1. Answer the following parts of this question?
a, What is the Class size?
b. What is the Class Mark (80-90) ?
C. What is the Range (30-40) ?
d. How many students scored 80 and more than 80% marks?

Answer 1

Answer:

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