Data Interpretation - Table Charts - Discussion
Discussion Forum : Table Charts - Table Chart 4 (Q.No. 4)
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 |
4.
The number of students scoring less than 40% marks in aggregate is?
Answer: Option
Explanation:
| We have 40% of 50 = |  |
40 | x 50 |  |
= 20. |
| 100 |
Required number
= Number of students scoring less than 20 marks in aggreagate
= 100 - Number of students scoring 20 and above marks in aggregate
= 100 - 73
= 27.
Discussion:
24 comments Page 2 of 3.
Kaviya said:
9 years ago
The word less than symbolise less than 20 marks so we need to take 10 and above only. Can you please explain this?
Amardeep singh said:
9 years ago
A number of student scoring less than 40% in aggregate is 50 * 40/100 = 20 marks.
A number of students who got less than 20 marks in aggregate are less than 20 means all the student who got 0 to 19 zero and above are 100 and 10 to above are 87.
All the student who got less than 20 comes under the counting of 100 hence we have to find the number of the student from 0 to 19 marks which are 100 - 73 = 27.
A number of students who got less than 20 marks in aggregate are less than 20 means all the student who got 0 to 19 zero and above are 100 and 10 to above are 87.
All the student who got less than 20 comes under the counting of 100 hence we have to find the number of the student from 0 to 19 marks which are 100 - 73 = 27.
Haripriya said:
8 years ago
Why we have to deduct with 100?
Shivaji said:
8 years ago
This is the best example of tubular DI.
Jithu said:
8 years ago
The que says that the given chart shows the classification of 100 students. That means in total 100 students are there;
100-73=27.
Total-students having above 20=students having below 20 marks.
100-73=27.
Total-students having above 20=students having below 20 marks.
Veiru said:
8 years ago
According to me, the correct ans is 13.
Because question says less than 20.
So we will take a number of student scoring 10 and above.
i.e 100 -87=13.
But if we remove the word "less than" in the question the provided answer is correct.
If it is wrong please correct me
Because question says less than 20.
So we will take a number of student scoring 10 and above.
i.e 100 -87=13.
But if we remove the word "less than" in the question the provided answer is correct.
If it is wrong please correct me
(2)
Somesh said:
7 years ago
Answer given is wrong because it is clearly mentioned that less than 40%. So why would we consider 40% and above?
(1)
Kartik said:
7 years ago
It is simple, its the total number
ie. 100 - (20 and above) = below 20.
ie. 100 - (20 and above) = below 20.
Sunil said:
7 years ago
The word less than 20 is inappropriate.
(2)
Anil said:
7 years ago
It is simple, the total no of students 100.
And who got 40% students is 73 remaining students are less than 40%.
So, 100-73=27.
And who got 40% students is 73 remaining students are less than 40%.
So, 100-73=27.
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