Data Interpretation - Table Charts - Discussion
Discussion Forum : Table Charts - Table Chart 3 (Q.No. 1)
Directions to Solve
The following table gives the percentage of marks obtained by seven students in six different subjects in an examination.
The Numbers in the Brackets give the Maximum Marks in Each Subject.
| Student | Subject (Max. Marks) | |||||
| Maths | Chemistry | Physics | Geography | History | Computer Science | |
| (150) | (130) | (120) | (100) | (60) | (40) | |
| Ayush | 90 | 50 | 90 | 60 | 70 | 80 |
| Aman | 100 | 80 | 80 | 40 | 80 | 70 |
| Sajal | 90 | 60 | 70 | 70 | 90 | 70 |
| Rohit | 80 | 65 | 80 | 80 | 60 | 60 |
| Muskan | 80 | 65 | 85 | 95 | 50 | 90 |
| Tanvi | 70 | 75 | 65 | 85 | 40 | 60 |
| Tarun | 65 | 35 | 50 | 77 | 80 | 80 |
1.
What are the average marks obtained by all the seven students in Physics? (rounded off to two digit after decimal)
Answer: Option
Explanation:
Average marks obtained in Physics by all the seven students
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| + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120) ] | |||||
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| = 89.14. |
Discussion:
51 comments Page 3 of 6.
Bhanu said:
7 years ago
They have given in the question that percentage of marks so we are taking 520% of 120.
Rajat said:
7 years ago
As in question, we are having the percentage of marks not the marks of the subjects, therefore, we are doing.
[(90% of 120) + (80% of 120) + (70% of 120) + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120)]
Here,
1/7x [(90 + 80 + 70 + 80 + 85 + 65 + 50)% of 120].
we have taken the 120 as common and afterwards, we found our solution.
[(90% of 120) + (80% of 120) + (70% of 120) + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120)]
Here,
1/7x [(90 + 80 + 70 + 80 + 85 + 65 + 50)% of 120].
we have taken the 120 as common and afterwards, we found our solution.
Soni said:
5 years ago
Thank you all for explaining this.
Xayaz said:
4 years ago
How could 50%of 120 become 50? Anyone can tell me? Please.
Karma Tshering said:
4 years ago
How do we calculate 1 over 7 multiple by total percentage obtain by individual?
AGS said:
2 months ago
We need to multiply it by 120 because the total marks of the physics examination is 120.
Anurag said:
1 decade ago
Two ways:
Either calculate the individual marks according to the percentage of marks given in the table. Then add all the marks and divide it by 7 to find out the Average marks.
Or
Do the sumtotal of all the percentage and then calculate the total marks for all the student and then divide by 7 to get the average marks.
Thanks.
Either calculate the individual marks according to the percentage of marks given in the table. Then add all the marks and divide it by 7 to find out the Average marks.
Or
Do the sumtotal of all the percentage and then calculate the total marks for all the student and then divide by 7 to get the average marks.
Thanks.
Asd said:
1 decade ago
Because in the table % of marks obtained in each subjects are mentioned.
Sanchita said:
1 decade ago
Why we took percentage of all?
Rajkishore said:
1 decade ago
Why we are taking 624?
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