# 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 $\inline 540$, answer the following questions.(ii) How many more marks were obtained by the student in Mathematics than in Hindi?

 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) $135-105=30$