Question

a rectangle field is 72 m by 58 m Keya walk around it at the rate of 3 per hour how long will it take to make 3 round

Answer 1

Length(L)=72m Breadth(B)=58m
Total distance(Perimeter)=2(L+B)
=2(72+58)
=2x130
=260m

speed=3 m/h
1 round(rectangular field)=260m
3 round=3x260=780
Now ,Time = Distance/ speed
                    =780m / 3m per h
                    =260 h