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 were540, answer the following questions.

(i) In which subject did the student score 105 marks?

(Hint: for 540 marks, the central angle =360^{\circ}. So, for 105 marks, what is the central angle?)

Answers (1)
subject central angle marks obtained
mathematics     90\degree  (90\degree\times 540)\div 360 = 135
science     80\degree (80\degree\times 540)\div 360 = 120
social science     65\degree (65\degree\times 540)\div 360 = 97.5
english     55\degree (55\degree\times 540)\div 360 = 82.5
hindi     70\degree (70\degree\times 540)\div 360 = 105

(i) In hindi subject the student score 105 marks.

 

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