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
|
|||||
| + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120) ] | |||||
|
|||||
|
|||||
|
|||||
| = 89.14. |
Discussion:
49 comments Page 1 of 5.
Deki said:
2 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.
(2)
Prem Sagar said:
3 years ago
520 marks are received for 7 students out of 840 marks.
Average marks received are 74 approximately.
Average marks received are 74 approximately.
(1)
Roopa said:
4 years ago
How we get 90%of 120 = 90?
(1)
Saurabh gupta said:
6 years ago
@All.
There is a big mistake in the question. That is, all the marks obtained by a student (Not the marks percentage) but in the answer, they are using them as percentage marks! How? Explain me clearly.
There is a big mistake in the question. That is, all the marks obtained by a student (Not the marks percentage) but in the answer, they are using them as percentage marks! How? Explain me clearly.
Shubham said:
6 years ago
The correct answer should be 74.29 as per average rule.
Akshata said:
6 years ago
90% of 120 is 108.
How can 90 came?
How can 90 came?
Sunaki said:
6 years ago
Thanks everyone. This discussion was helpful.
Samsam said:
6 years ago
@Akshata.
It's written 'percentage of marks' not just marks and yes 90% of 120 is not 90 but they have taken " % of 120" as common and grouped the percentage marks together for addition in the second step.
It's written 'percentage of marks' not just marks and yes 90% of 120 is not 90 but they have taken " % of 120" as common and grouped the percentage marks together for addition in the second step.
Mark gor said:
6 years ago
We can 1/7 * (90+80+70+80+85+65+50).
= 1/7 * 520.
= 74.2857 * 1.2 (full mark 120%) = 89.14.
= 1/7 * 520.
= 74.2857 * 1.2 (full mark 120%) = 89.14.
Rohit said:
5 years ago
80% of 120 is 96 not 90.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers