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 2 of 4.
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.
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.
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.
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.
Ams02 said:
10 years ago
Answer should be (D) as they have asked for minimum eligibility range, and question doesn't mention anything about explicitly about passing criteria so we should not assume any extra information.
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.
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
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.
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)
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.
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