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.

(ii) How many more marks were obtained by the student in Mathematics than in Hindi?

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

(ii) 135-105=30

Hence, 30 more marks were obtained by the student in Mathematics than in Hindi.

 

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