Ex 5.2, 4 The adjoining pie chart gives the marks scored in an examination by a student in Hindi, English, Mathematics, Social Science and Science. If the total marks obtained by the students were 540, answer the following questions. We need to first find the marks obtained by the students in each subject
To find the fraction, we divide angle by 360° because 360° is the central angle of circle.Ex 5.2, 4 (i) In which subject did the student score 105 marks? (Hint: for 540 marks, the central angle = 360°. So, for 105 marks, what is the central angle?) From the table,
∴ The student scored 105 marks in Hindi.
Ex 5.2, 4 (ii) How many more marks were obtained by the student in Mathematics than in Hindi? Marks scored in Mathematics = 135
Marks scored in Hindi = 105
Difference in Marks = 135 − 105
= 30
∴ Students obtained 30 more marks in Mathematics that in Hindi.
Ex 5.2, 4 (iii) Examine whether the sum of the marks obtained in Social Science and Mathematics is more than that in Science and Hindi. (Hint: Just study the central angles). Marks in Social Science & Mathematics
Marks obtained in Social Science = 97.5
Marks obtained in Mathematics = 135
Sum = 97.5 + 135 = 232.5
Marks in Science & Hindi
Marks obtained in Science
= 120
Marks obtained in Hindi
= 105
Sum = 120 + 105 = 225
Yes,
The sum of the marks obtained in Social Science and Mathematics is more than that in Science and Hindi.

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

Hi, it looks like you're using AdBlock :(

Displaying ads are our only source of revenue. To help Teachoo create more content, and view the ad-free version of Teachooo... please purchase Teachoo Black subscription.

Please login to view more pages. It's free :)

Teachoo gives you a better experience when you're logged in. Please login :)

Solve all your doubts with Teachoo Black!

Teachoo answers all your questions if you are a Black user!