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 3 of 3.
Dawa Gyeltshen said:
5 years ago
Why can't we directly take 27 from the table 30 and above. It is less than 40 % and we can easily get 27!
Is there any logic here? Help me.
Is there any logic here? Help me.
(2)
Tashi Tshering said:
4 years ago
10 and above should be included but 20 30 40 above are not included since it is higher than 40% and above.
Physic 92-80 = 12.
Chemistry 81-66 = 15.
=27.
Physic 92-80 = 12.
Chemistry 81-66 = 15.
=27.
Jatsho said:
3 years ago
It's simple.
Out of 100 students, 73 students have scored 20/50 and to find students scored less than 20, simply subtract total students (100) - students scored above 20 (73) = 27.
We can't simply subtract 73 from 87 because there are students scored less than 10 also so, it 73 should subtract from 100.
Out of 100 students, 73 students have scored 20/50 and to find students scored less than 20, simply subtract total students (100) - students scored above 20 (73) = 27.
We can't simply subtract 73 from 87 because there are students scored less than 10 also so, it 73 should subtract from 100.
(1)
Afsal morya said:
2 years ago
Here, it is clearly mentioned that less than 40%. So, why would we consider 40% and above?
Please, anyone, explain me.
Please, anyone, explain me.
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