In a test in Mathematics, `20%` of the students obtained ''first class''. If the data are represented by a Pie - chart, what is the central angle corresponding to ''first class''?

Options

A. `20^(@)`
B. `36^(@)`
C. `72^(@)`
D. `144^(@)`

Answer

C

Explanation

Central angle `=20%" of "360%`
`=(20xx60)/(100)`
`=72^(@)`