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)
Ayush905090607080
Aman1008080408070
Sajal906070709070
Rohit806580806060
Muskan806585955090
Tanvi707565854060
Tarun653550778080


1.
What are the average marks obtained by all the seven students in Physics? (rounded off to two digit after decimal)
77.26
89.14
91.37
96.11
Answer: Option
Explanation:

Average marks obtained in Physics by all the seven students

 
= 1 x [ (90% of 120) + (80% of 120) + (70% of 120)
7
              + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120) ]
= 1 x [ (90 + 80 + 70 + 80 + 85 + 65 + 50)% of 120 ]
7
= 1 x [ 520% of 120 ]
7
= 624
7
= 89.14.

Discussion:
52 comments Page 4 of 6.

Agada Samuel said:   5 years ago
520/7 = 74.28
74.28 * 120 = 8913.6
8913.6/100 = 89.136
= 89.14.
(15)

Sushmitha reddy said:   8 years ago
I can't understand this problem. Can you explain cleary to me?

Xayaz said:   4 years ago
How could 50%of 120 become 50? Anyone can tell me? Please.
(1)

Ramji said:   5 years ago
I don't understand the method. Please explain the answer.
(3)

Namit said:   1 decade ago
Here marks is not given percentage is given of max marks.

Shubham said:   9 years ago
The correct answer should be 74.29 as per average rule.

Lakshmi said:   1 decade ago
The original form of 520% of 120 is 520*100/120.

Sunaki said:   9 years ago
Thanks everyone. This discussion was helpful.

XYZ said:   6 years ago
Questions should mention all the details.
(1)

Yash said:   1 month ago
How is 90% of 120 = 90?

Please explain.


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