In Fig. 25.21, the pie-chart shows the marks obtained by a student in various subjects. If the student scored 135 marks in mathematics, find the total marks in all the subjects. Also, find his score in individual subjects.
Marks scored in mathematics $=\frac{\text { Central angle of corresponding sector } \times \text { Total Marks }}{360^{\circ}}$
$135=\frac{90^{\circ} \times \text { Total }}{360^{\circ}}$
Total Marks $=540$
Marks scored in Hindi = (Central angle of Hindi x Total)/360
= (60 x 540)/360 marks = 90 marks
Similarly, marks scored in science = (76 x 540) /360 marks = 114 marks
Marks scored in social science = (72 x 540) /360 marks = 108 marks
Marks scored in English = (62 x 540)/360 marks = 93 marks
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