A rectangular plot measuring 90 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 answer.
A) 34	B) 77	C) 36	D) 56	E) 91
Explanation:   perimeter of the plot = 2(90+50) = 280m   no of poles =280/5= 
<gadget id="calculator">280/5</gadget>
<output>56</output>
56m   Answer: 56
<result>D</result>
A rectangular plot measuring 90 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?