• # question_answer If a boy runs once around a football field of length and width equal to 30 and 20 metre respectively how many metre has he run? A)  50 m                          B)  100 m        C)  600 m           D)  80 m

length that the boy ran = Perimeter of rectangular field $=2\times (1+b)=2\times (30+20)=100\,\,m$