SSC CHSL 19 Mar 2020 Shift 3 Paper

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. Given, total marks $=720$
According to the pie-chart, Marks obtained in Chemistry, Biology and Maths together
$=\frac{\left(45+55+80\right)}{360}\times 720=360$
∴ Required per cent
$=\frac{360}{720}\times 100=50\%$