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.
Shivaji said:
8 years ago
This is the best example of tubular DI.
Haripriya said:
8 years ago
Why we have to deduct with 100?
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.
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?
Sangamithra said:
9 years ago
Actually my doubt is:
To get number of students with marks less than 20 we can subtract students with 20 to 50 marks from 10 to 50 i.e, 87 - 73 = 14.
Why should we consider 100 - 73?
To get number of students with marks less than 20 we can subtract students with 20 to 50 marks from 10 to 50 i.e, 87 - 73 = 14.
Why should we consider 100 - 73?
Atharva said:
10 years ago
I think 0 to 100 indicates the total number of students.
Then from that value deduct the 20 and above.
i.e 100-73 = 27.
Then from that value deduct the 20 and above.
i.e 100-73 = 27.
Shikha said:
1 decade ago
Aggregate: 7 27 73 87 100.
Why we are not directly take 87 and 100 value?
Because in table is already mansion "10 and above & 0 and above".
So according to them we should add these two values (100+87).
But they take 27 "Who is 30 and above"?
Can any one explain this question?
Why we are not directly take 87 and 100 value?
Because in table is already mansion "10 and above & 0 and above".
So according to them we should add these two values (100+87).
But they take 27 "Who is 30 and above"?
Can any one explain this question?
Riya said:
1 decade ago
How 100-73 came? What that 73 denotes? How to calculate that 73?
Sohail said:
1 decade ago
If there is no word lesser then answer will become 73.
If there is lesser than = no.of students -73.
If there is lesser than = no.of students -73.
Emmanuel said:
1 decade ago
But using less than in the sentence makes it start from 10 and above. Why is the aggregate for 20 and above being used instead?
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