CGPSC Prelims CSAT 2020 Solved Paper 2

Concept:Percent more means the extra amount compared to the base quantity, expressed as a percentage.Here, students in C are the base because E is being compared to C.Explanation:From the pie chart, the central angle for specialisation E is $97.2^\circ$.The central angle for specialisation C is $72^\circ$.The extra angle for E over C is $97.2^\circ - 72^\circ = 25.2^\circ$.Required percentage $= \dfrac{\text{extra}}{\text{base}} \times 100$$= \dfrac{25.2}{72} \times 100$$= \dfrac{2520}{72}$$= 35\%$.So, E has $35\%$ more students than C.Answer:$35\%$ (Option B).