Question

A rectangular plot measuring $90$ metres by $50$ meters is to be enclosed by wire fencing. If the pole of the fence are kept $5$ meters apart, how many poles will be needed?

• A. $55$
• B. $56$
• C. $57$
• D. $58$

Answer 1

The correct option is B $56$

Length of the wire fencing = perimeter

= 2 (90+50) = 280 m

Two poles will be kept 5 m a part . The pole will

be placed along the perimeter of the rectangular

plot, not in a single straight line which is

easy important.

Hence, no. of poles required $=\frac{280}{5}=56.$