100+ Tabulation Data Interpretation Questions and Answers - 1

The following table gives the percentage of marks obtained by 7 students in 6 different subjects in an examination. Study the table and answer the questions based on it.

Pie chart

Question: 1

What was the aggregate of marks obtained by Sajal in all the six subjects?

(A) 429

(B) 439

(C) 449

(D) 459

Ans: C

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.

Question: 2

The number of students who obtained 60% and above marks in all the subjects is

(A) 1

(B) 2

(C) 3

(D) 4

Ans: B

From the given table it is clear that Sajal and Rohit obtained 60% or more marks in each of the 6 subjects.

Question: 3

What is the overall percentage of Tarun?

(A) 55%

(B) 60%

(C) 63%

(D) 64.5%

Ans: B

Aggregate marks obtained from Tarun

= (65% of 150) + (35% of 130) + (50% of 120) + (77% of 100) + (80% of 60) + (80% of 40)

= (97.5 + 44.5 + 60 + 77 + 48 + 32) = 360.

Total maximum marks of all the 6 subjects

= (150 + 130 + 120 + 100 + 60 + 40) = 600.

Overall percentage of Tarun = $$({360}/{600} × 100)%$$ = 60%.

Question: 4

What are the average marks obtained by all the seven students in Physics? (rounded off to two digits after decimal)

(A) 77.26

(B) 79.14

(C) 89.14

(D) 91.37

Ans: C

Total marks obtained in Physics by all the 7 students

= (90% of 120) + (80% of 120) + (70% of 120) + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120)

= (108 + 96 + 84 + 96 + 102 + 78 + 60) = 624.

∴ Average marks obtained by them in Physics = $${624} / {7}$$ = 89.14.

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