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:
54 comments Page 2 of 6.

XYZ said:   7 years ago
Questions should mention all the details.
(1)

Milan Pipaliya said:   6 years ago
In Computer Science Max Mark is 40, But Student Marks is given up to 90. How can we get 90 marks even Max mark is 40 only.
(1)

Xayaz said:   5 years ago
How could 50%of 120 become 50? Anyone can tell me? Please.
(1)

Yash said:   9 months ago
How is 90% of 120 = 90?

Please explain.
(1)

Ravindersingh said:   2 decades ago
Why are we taking 624/7 ?
(1)

Soni said:   6 years ago
Thank you all for explaining this.

Karma Tshering said:   5 years ago
How do we calculate 1 over 7 multiple by total percentage obtain by individual?

AGS said:   1 year ago
We need to multiply it by 120 because the total marks of the physics examination is 120.

Vishakha said:   6 months ago
I think its 74.2.

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


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