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 1 of 6.
AGS said:
1 month ago
We need to multiply it by 120 because the total marks of the physics examination is 120.
Theju said:
7 months ago
Why we took 120%?
They just asked the average right? If anyone knows it, please explain to me.
They just asked the average right? If anyone knows it, please explain to me.
(1)
Samyukta said:
4 years ago
Why are we taking 1/7? Please explain.
(8)
Lalitha said:
4 years ago
As they have given the percentage of marks, we need to calculate the actual marks, so 90% means, 90/100 (120). From this, we get the actual marks scored.
Correct me, If my concept is wrong.
Correct me, If my concept is wrong.
(6)
Deki said:
4 years ago
It's simple.
You can add all the marks obtained in physics by 7students, you will get 520 of 120.
Here of 120 mean: result/100 * total mark.
120/100 * 520 = 624
624/7 = 89.14.
You can add all the marks obtained in physics by 7students, you will get 520 of 120.
Here of 120 mean: result/100 * total mark.
120/100 * 520 = 624
624/7 = 89.14.
(23)
Karma Tshering said:
4 years ago
How do we calculate 1 over 7 multiple by total percentage obtain by individual?
Xayaz said:
4 years ago
How could 50%of 120 become 50? Anyone can tell me? Please.
Ramji said:
4 years ago
I don't understand the method. Please explain the answer.
(3)
Soni said:
5 years ago
Thank you all for explaining this.
Agada Samuel said:
5 years ago
520/7 = 74.28
74.28 * 120 = 8913.6
8913.6/100 = 89.136
= 89.14.
74.28 * 120 = 8913.6
8913.6/100 = 89.136
= 89.14.
(15)
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