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 3 of 4.
Vinu Prasad said:
1 decade ago
@Vijay krishna,
You are right. Since the question does not mention any passing criteria the answer can be both C and D.
On a second thought, I think option D fits the most as they have asked for the minimum qualifying range. In the question, only minimum number of students is mentioned i.e 23. Maximum can be anything since the min pass criteria is not mentioned i.e 10, 20 or anything else.
You are right. Since the question does not mention any passing criteria the answer can be both C and D.
On a second thought, I think option D fits the most as they have asked for the minimum qualifying range. In the question, only minimum number of students is mentioned i.e 23. Maximum can be anything since the min pass criteria is not mentioned i.e 10, 20 or anything else.
Jay said:
1 decade ago
As minimum 23 is required but in case of 30 and above its just 21 but we need minimum value to be 23. So we go 20 to 30 range, as per my understanding.
GAUTAM VERMANI said:
1 decade ago
0-10 19.
10-20 15.
20-30 45.
30-40 17.
40-50 4.
So if we take 30-40 as range there will be 21 students, but the required is 23 or more.
So we need to include 20-30 as cut off.
10-20 15.
20-30 45.
30-40 17.
40-50 4.
So if we take 30-40 as range there will be 21 students, but the required is 23 or more.
So we need to include 20-30 as cut off.
Vijay krishna said:
1 decade ago
Below 20, there are 100-66 = 34.
Why the answer is C, why can't it be D.
Even 23 can also be fitted in below 20.
Since they have not given any passing criteria as a condition.
Please rectify me if I am wrong.
Why the answer is C, why can't it be D.
Even 23 can also be fitted in below 20.
Since they have not given any passing criteria as a condition.
Please rectify me if I am wrong.
Ankit said:
1 decade ago
Any test will take top 23 and above,
@Goutham below 20 yes we have 34 students but why any test will try to select low marks student then those who got higher marks.
Now in range 30-40 we have only 21 students and acc to question at least 23 are eligible so 20-30 having 45 students who are better than 34 students in range 0-20 is taken as right answer.
@Goutham below 20 yes we have 34 students but why any test will try to select low marks student then those who got higher marks.
Now in range 30-40 we have only 21 students and acc to question at least 23 are eligible so 20-30 having 45 students who are better than 34 students in range 0-20 is taken as right answer.
Goutham said:
1 decade ago
Below 20, there are 100-66 = 34.
Why the answer is C, why can't it be D.
Even 23 can also be fitted in below 20.
Since they have not given any passing criteria as a condition.
Please rectify me if I am wrong.
Why the answer is C, why can't it be D.
Even 23 can also be fitted in below 20.
Since they have not given any passing criteria as a condition.
Please rectify me if I am wrong.
Sandip Verma said:
1 decade ago
@Alok is correct.
Please read the question "at least 23 students were eligible".
And in calculation of Alok, 23 can only be fit in 20-30 band.
So answer is C which is 20-30.
Please read the question "at least 23 students were eligible".
And in calculation of Alok, 23 can only be fit in 20-30 band.
So answer is C which is 20-30.
Alok kumar mishra said:
1 decade ago
Between 0-10 there are 100-81 = 19 students.
Between 10-20 there are 81-66 = 15 students.
Between 20-30 there are 66-21 = 45 students.
Between 30-40 there are 21-4 = 17 students.
So the 23 students lies in between 20-30.
Between 10-20 there are 81-66 = 15 students.
Between 20-30 there are 66-21 = 45 students.
Between 30-40 there are 21-4 = 17 students.
So the 23 students lies in between 20-30.
Kevin said:
1 decade ago
Please any one give brief explanation regarding this question.
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.
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