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 5 of 6.
DEVARAJU said:
1 decade ago
We are taking only marks here. Why we have to take % here.
Actually marks are given of all students so, We calculate only avg of marks.
Sol: Total marks is 520/7 = 74.29.
Actually marks are given of all students so, We calculate only avg of marks.
Sol: Total marks is 520/7 = 74.29.
Sami said:
1 decade ago
Why we are taking 1/7 here?
Krishna said:
1 decade ago
Why we are calculating % over here? means in order to find avg we just sum all the number/total num.
Sekar said:
1 decade ago
@Sam
(90+80+70+80+85+65+50/100)*120 = ((520)/100)*120 = 52*12 = 624
(90+80+70+80+85+65+50/100)*120 = ((520)/100)*120 = 52*12 = 624
Sam said:
1 decade ago
How we got 624?
Kumaraswamy said:
1 decade ago
@Neharika:
All above total markes same, so per add 120 is common
a%150 + b%150 + c%150=(a +b +c)%150
All above total markes same, so per add 120 is common
a%150 + b%150 + c%150=(a +b +c)%150
Rajkishore said:
1 decade ago
Why we are taking 624?
Sanchita said:
1 decade ago
Why we took percentage of all?
Ravindersingh said:
1 decade ago
Why are we taking 624/7 ?
(1)
Asd said:
1 decade ago
Because in the table % of marks obtained in each subjects are mentioned.
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