In an institute, there are 800 students. Students use different modes of transport for going to the institute and return the given pie diagram represents the requisite data. Number of students, who go to institute on foot, are
A) 160
B) 170
C) 120
D) 106
Correct Answer: A
$ \therefore $ Required number of students $ =\frac{72{}^\circ }{360{}^\circ }\times 800=160 $