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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?

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subject	central angle	marks obtained
Mathematics	$90\degree$	$(90\degree\times 540)\div 360\degree = 135$
Science	$80\degree$	$(80\degree\times 540)\div 360\degree = 120$
Social science	$65\degree$	$(65\degree\times 540)\div 360\degree = 97.5$
English	$55\degree$	$(55\degree\times 540)\div 360\degree = 82.5$
Hindi	$70\degree$	$(70\degree\times 540)\div 360\degree = 105$

(ii) $135-105=30$

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

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seema garhwal

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