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The given pie chart shows the marks obtained in an examination by a student (in degrees). Observe the pie chart and answer the question that follows.If total marks are 720, then the marks obtained in Chemistry, Biology and Maths together is what percentage of the total marks?
Given:SubjectMathsPhysicsBiologyPhysical EducationEnglishChemistryMark obtain80°70°55°50°60°45°The total marks = 720Concept used:In pie chart,360° ? 100%? 1% ? 360°/100Percentage = (X/Y) × 100X ? Marks in Chemistry, Biology and Maths in togetherY ? Total marksCalculation:360° = 7201° = 2Marks in Chemistry, Biology and Maths = 45° + 55° + 80° = 180°Marks in Chemistry, Biology and Maths = 180° × 2 = 360Percentage = (marks in Chemistry, Biology and Maths/Total marks) × 100? (360/720) × 100? 50%? The percentage marks in Chemistry, Biology and Maths together is 50% of total marks. Percentage = [(45° + 55° + 80°)/360°] × 100 = (180°/360°) × 100 = 50%
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