A rectangular plot measuring 40 meters by 50 meters is to be enclosed by wire fencing. If the poles of the fence are kept 5 meters apart. How many poles will be needed?  Choose the correct choice from the following choices:
A) 46m
B) 36m
C) 26m
D) 56m
E) 25m
Perimeter of the plot = 2(40+50) = 180m   no of poles =180/5= 
<gadget id="calculator">180/5</gadget>
<output>36</output>
36m   Answer: 36m
<result>B</result>
A rectangular plot measuring 40 meters by 50 meters is to be enclosed by wire fencing. If the poles of the fence are kept 5 meters apart. How many poles will be needed?