# Data Interpretation - Table Charts - Discussion

Discussion Forum : Table Charts - Table Chart 3 (Q.No. 3)
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

3.
What was the aggregate of marks obtained by Sajal in all the six subjects?
409
419
429
449
Explanation:

Aggregate marks obtained by Sajal

= [ (90% of 150) + (60% of 130) + (70% of 120)

+ (70% of 100) + (90% of 60) + (70% of 40) ]

= [ 135 + 78 + 84 + 70 + 54 + 28 ]

= 449.

Discussion:
20 comments Page 1 of 2.

Shanto said:   3 years ago
(90/100) * 150 = 135.

Ketan sonar said:   5 years ago
10% of 150 = 15,
So, 90% of 150 = 15*9 = 135.

Sushmitha said:   5 years ago
Not understanding this, please someone explain me.

Santokh singh said:   6 years ago
Awesome learning ways. Thank you all.

Sinu said:   6 years ago
90 is not the percentage obtained by Sajal in Maths. 90 is the total mark obtained by him in Maths out of 150. i.e. He scored only 60% for Maths. Then how come we take 90% of 150?

Shadab Akhtar said:   7 years ago
@Karthika.

There is a difference between aggregate and average.

Hope you can understand it.

Karthika said:   7 years ago
@Renu.

If they ask aggregate we should divide 449 by 6.

Here only aggregate marks are asked.

Renu said:   7 years ago
Aggregate is 449, but we are not dividing it by 6. i.e 449/6.

D D said:   7 years ago
10% of 150 = 15.

90% of 150 = 9 X (10%) = 15 x 9 = 135.

Similarly find 10% of total and multiply as required.

Priyanshi said:   7 years ago
Aggregate marks are given already then what the need to calculate %.

Why can't we directly sum up the given marks?