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 4 of 7.
Suhass said:
9 years ago
We should have to calculate the number of students who got 40 and above also. Am I right?
Vijay said:
9 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 must be '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 must be 'option B'.
VASU said:
9 years ago
Friends, 32 is correct because look at the chart it is mentioned that "30 and above" i.e. all the students whose marks are between 30 - 50 are already included in it. Had it been 30 - 40 and then 40 - 50 then we should have considered 32 + 9 = 41.
Hope you get it.
Hope you get it.
Pursing said:
9 years ago
We required only 30 and above so we minus 9 (that is above 40 in physics) from 32 (that is above 30 in physics) we got 23.
Then 23 + 27 = 50. Therefore, 60% of 50 is 30. Above 30, the numbers of students are 32.
So, the answer is 32.
Then 23 + 27 = 50. Therefore, 60% of 50 is 30. Above 30, the numbers of students are 32.
So, the answer is 32.
Arnima said:
9 years ago
Can anybody explain to me how we got 32, 60 can come under 40 so why we took 30?
Garima majoka said:
9 years ago
32 is right answer because it ask at least 30 n above here 30 is also included in 40 and above 30 not included.
Jalak Shukla said:
9 years ago
Friends, 32 is correct answer. It's sum of 40 and 30. See below calculation:
40 and above: 9 - 0 = 9
30 and above: 32 - 9 = 23
20 and above: 80 - 32 = 48
10 and above: 92 - 80 = 12
0 and above: 100 - 92 = 8
Total Student = (9 + 23 + 48 + 12 + 8) = 100 student.
So, 32 is a sum of 40 and 30 (and above) students who got at least 60% marks in Physics.
40 and above: 9 - 0 = 9
30 and above: 32 - 9 = 23
20 and above: 80 - 32 = 48
10 and above: 92 - 80 = 12
0 and above: 100 - 92 = 8
Total Student = (9 + 23 + 48 + 12 + 8) = 100 student.
So, 32 is a sum of 40 and 30 (and above) students who got at least 60% marks in Physics.
(1)
Sainadh said:
9 years ago
I think it must be 41.
Chandan kumar sahni said:
8 years ago
According to me, the right answer will be 41.
PALLAV RAI said:
8 years ago
Here 30 and above means 30-50 ie.40 and above data is also included in the 30 and above data.so during calculation if one will include 40 and above data.It means 40 and above data included twice and thus the answer will be wrong.
If the data would have been 30-40 and 40-50 separately then including both the data would have been the correct step.
If the data would have been 30-40 and 40-50 separately then including both the data would have been the correct step.
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