In a Mathematics test, the following marks were obtained by 40 students. Arrange these marks in a table using tally marks.

(a) Find how many students obtained marks equal to or more than $ 7 . $
(b) How many students obtained marks below 4?"

AcademicMathematicsNCERTClass 6

To do:

We have to find

(a) The number of students who obtained marks equal to or more than \( 7 . \)

(b) The number of students who obtained marks below 4.
Solution:

MarksTally MarksNumber of students
1||2
2|||3
3|||3
4

|||| ||

7
5|||| |
6
6|||| ||
7
7||||
5
8||||4
9|||3

(a) The number of students who obtained marks equal to or more than $7=$ The number of students who obtained 7 marks $+$ The number of students who obtained 8 marks $+$ The number of students who obtained 9 marks

$=5+4+3$

$=12$

(b) The number of students who obtained marks below $4=$ The number of students who obtained 3 marks $+$ The number of students who obtained 2 marks $+$ The number of students who obtained 1 mark

$=2+3+3$

$=8$

raja
Updated on 10-Oct-2022 13:36:10

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