Data Interpretation - Table Charts - Discussion
Discussion Forum : Table Charts - Table Chart 4 (Q.No. 5)
Directions to Solve
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.
| Subject | Marks out of 50 | ||||
| 40 and above | 30 and above | 20 and above | 10 and above | 0 and above | |
| Physics | 9 | 32 | 80 | 92 | 100 |
| Chemistry | 4 | 21 | 66 | 81 | 100 |
| Average (Aggregate) | 7 | 27 | 73 | 87 | 100 |
5.
If it is known that at least 23 students were eligible for a Symposium on Chemistry, then the minimum qualifying marks in Chemistry for eligibility to Symposium would lie in the range?
Answer: Option
Explanation:
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.
Discussion:
38 comments Page 1 of 4.
Sowmya said:
1 decade ago
As 66 students have got above 20. How can we select only 30 and above students are eligible. No where it is mentioned.
Premsai said:
1 decade ago
I think 30-40 is the answer, can any one suggest me the right ans.
Spv said:
1 decade ago
Can anyone explain breifly?
Jack said:
1 decade ago
Correct answer is between 30-40 because there are 25 student in the range. In question it requires only 23 student.
Abhishek said:
1 decade ago
It just mentioned 23 required, but which range is not mentioned. So, many ways we can get!
Vishal Verma said:
1 decade ago
@all
Above 20 there are 66 people
Above 30 there are 21 people
So people between 20-30 would be 66-21 = 45 people
Option C is correct , no doubt in that.
Above 20 there are 66 people
Above 30 there are 21 people
So people between 20-30 would be 66-21 = 45 people
Option C is correct , no doubt in that.
(1)
Mohit gupta said:
1 decade ago
Answer why it is 20-30 because if u see the difference you can't get anyone difference(0-20,30-40,40-50)that have atleast 23 students are in the range 20-30.
See it thoroughly
See it thoroughly
Dina said:
1 decade ago
Exactly at least 23 students are in the range 20-30,
Because. Range 40& above has = 4 students.
Range 30 & above has = 21-4= 17 students.
30-40 range has 21 students & the required is more than that its 23 students, that's why it has 2b the 20-30 range where more students can b eligible (minimum qualifying marks).
No.of the 4 students in range (40 & above) is included in the 21 students in the (30 & above range).
Because. Range 40& above has = 4 students.
Range 30 & above has = 21-4= 17 students.
30-40 range has 21 students & the required is more than that its 23 students, that's why it has 2b the 20-30 range where more students can b eligible (minimum qualifying marks).
No.of the 4 students in range (40 & above) is included in the 21 students in the (30 & above range).
Santhosh said:
1 decade ago
Option c is correct because the 21 students above 30 also includes 4 students who are above 40. So the total is 21 how can we get 23 so we have to go for above 20 marks where 66 includes this 21 and 4 students in the upper range.
Kevin said:
1 decade ago
Please any one give brief explanation regarding this question.
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