20june2019 paper1 Q31
Consider the following table that shows the distribution of students in two sections A and B in a school according to the marks obtained by them. There is a total of 45 students in each of sections A and B. Answer the questions based on the data contained in the table:
Marks obtained by students
| Marks in Class Interval |
Number of students in | |
| Section A | Section B | |
| [0—9] | 2 | 4 |
| [10—19] | 5 | 5 |
| [20—29] | 10 | 9 |
| [30—39] | 4 | 4 |
| [40—49] | 8 | 7 |
| [50—59] | 4 | 5 |
| [60—69] | 7 | 5 |
| [70—79] | 5 | 6 |
0. How many students in Section A have obtained 30 or more marks but less than 50?
- Option : A
- Explanation : Number of students in section A have obtained
marks (30 - 39) = 4
(40-49) = 8
Number of students obtained between 30 to 50
= 4 + 8 = 12.
