# Easy Tabular Data Solved QuestionData Interpretation Discussion

Common Information

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.

Table below can be scrolled horizontally

Student Subject (Max. Marks)

Maths
(150)

Chemistry
(130)

Physics
(120)

Geography
(100)

History
(60)

Computer Science
(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

 Q. Common Information Question: 1/5 What are the average marks obtained by all the seven students in Physics? (rounded off to two digit after decimal)
 ✖ A. 77.26 ✔ B. 89.14 ✖ C. 91.37 ✖ D. 96.11

Solution:
Option(B) is correct

Table below can be scrolled horizontally

Student Subject (Max. Marks)

Math.
(150)

Chem.
(130)

Phy.
(120)

Geo.
(100)

Hist.
(60)

Comp. Sc.
(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

Average marks obtained in Physics by all the seven students:

$=\dfrac{1}{7} × \left[ \begin{array}{l l l l l l} (\text{90% of 120}) &+& (\text{80% of 120}) &+& (\text{70% of 120}) &+\\ (\text{80% of 120}) &+& (\text{85% of 120}) &+& (\text{65% of 120}) &+\\ (\text{50% of 120}) & & & & \end{array} \right]$

$=\dfrac{1}{7} × [ (90 + 80 + 70 + 80 + 85 + 65 + 50)\% \text{ of } 120 ]$

$=\dfrac{1}{7} × [ 520\% \text{ of } 120 ]$

$=\dfrac{624}{7}$

$= \textbf{89.14}$