Study the following table and answer the questions.
Classification of 100 Students Based on the Marks Obtained by them in Physics and Chemistry in an Examination.
40-45
30-40
20-30
Below 20
Correct answer is C
Since 66 students get 20 and above marks in Chemistry and out of these 21 students get 30 and above marks, therefore to select top 35 students in Chemistry, the qualifying marks should lie in the range 20-30
Study the following table and answer the questions.
Classification of 100 Students Based on the Marks Obtained by them in Physics and Chemistry in an Examination.
The number of students scoring less than 40% marks in aggregate is?
13
19
20
27
Correct answer is D
We have 40% of 50 = ( 40/100 x 50 ) = 20
Therefore Required number
= Number of students scoring less than 20 marks in aggreagate
= 100 - Number of students scoring 20 and above marks in aggregate
= 100 - 73
= 27
Study the following table and answer the questions.
Classification of 100 Students Based on the Marks Obtained by them in Physics and Chemistry in an Examination.
21%
27%
29%
31%
Correct answer is C
Number of students getting at least 60% marks in Chemistry
= Number of students getting 30 and above marks in Chemistry
= 21
Number of students getting at least 40% marks in aggregate
= Number of students getting 20 and above marks in aggregate
= 73
Required percentage = ( 21/73 x 100 ) %
= 28.77%
≈ 29%.
Study the following table and answer the questions.
Classification of 100 Students Based on the Marks Obtained by them in Physics and Chemistry in an Examination.
27
32
34
41
Correct answer is B
We have 60% of 50 = ( 60/100 x 50 ) = 30
Therefore Required number
= No. of students scoring 30 and above marks in Physics
= 32
Study the following table and answer the questions.
Classification of 100 Students Based on the Marks Obtained by them in Physics and Chemistry in an Examination.
3
4
5
6
Correct answer is D
Required difference
= (No. of students scoring 30 and above marks in Chemistry)
- (Number of students scoring 30 and above marks in aggregate)
= 27 - 21
= 6
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