Data Interpretation - Table Charts - Discussion
Discussion Forum : Table Charts - Table Chart 4 (Q.No. 2)
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 |
2.
If at least 60% marks in Physics are required for pursuing higher studies in Physics, how many students will be eligible to pursue higher studies in Physics?
Answer: Option
Explanation:
| We have 60% of 50 = |  |
60 | x 50 |  |
= 30. |
| 100 |
Required number
= No. of students scoring 30 and above marks in Physics
= 32
Discussion:
66 comments Page 2 of 7.
Nuts said:
6 years ago
Can anyone tell me from where 50 came. I am totally new in solving DI.
(3)
Sumit said:
6 years ago
Let me make this simple for everyone.
Total Students : 100.
Let's understand the table from right to left.
For any subject (Chem/Phy).
0 and above : 100 (Includes all students) who scored 0 or more.
10 and above : Includes all students scored 10, 10+ , except previous ones.
20 and above : Includes all students scored 20,20+ except previous ones.
30 and above : Includes all students scored 30,30+ except previous ones.
40 and above : Includes all students scored 40,40+ except previous ones.
Now according to above question;
Students eligible are 32, which includes all the students scored 30,30+
Hence we are not adding another 9 students as they are already included in this column,
It's just they scored more marks than others and listed in leftmost column.
Total Students : 100.
Let's understand the table from right to left.
For any subject (Chem/Phy).
0 and above : 100 (Includes all students) who scored 0 or more.
10 and above : Includes all students scored 10, 10+ , except previous ones.
20 and above : Includes all students scored 20,20+ except previous ones.
30 and above : Includes all students scored 30,30+ except previous ones.
40 and above : Includes all students scored 40,40+ except previous ones.
Now according to above question;
Students eligible are 32, which includes all the students scored 30,30+
Hence we are not adding another 9 students as they are already included in this column,
It's just they scored more marks than others and listed in leftmost column.
(7)
Ashwin said:
6 years ago
It clearly states at least 60%. So the answer should be 41.
Abirami said:
7 years ago
I am not understanding this. Can anyone explain it clearly?
Prasanna said:
7 years ago
Thank you for all the explanation.
(1)
Birobi said:
7 years ago
(0 - 9)-8; (10 - 19)-12; (20 - 29)-48 - (30 - 39)-23; (40 - 50)-9.
The question says at least 60%, here 60% mark is 30.
30 and above marks column mentioned 23 + 9 = 32 students.
So the answer 'option B'.
The question says at least 60%, here 60% mark is 30.
30 and above marks column mentioned 23 + 9 = 32 students.
So the answer 'option B'.
(1)
Aditya said:
7 years ago
41 will be the answer.
Suja said:
8 years ago
Thank you all for the explanation.
Birju said:
8 years ago
But 40 will also be included in cut off 30.
So, the answer will be 32+9=41.
So, the answer will be 32+9=41.
Shital said:
8 years ago
Thanks @Madhu Maheshwari.
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