A 1 k.m. long wire is held by n poles. If one pole is removed, the length of the gap becomes 12/3m. What is the number of poles initially?	Choose the correct answer:
A) 500
B) 501
C) 502
D) 503
E) 504
Length after removing pole is 12/3= 
<gadget id="calculator">12/3</gadget>
<output>4</output>
4   Then before removing pole is 2 ('coz | 2 | 2 | is | 4 |)   i.e. Gap between two poles is 2m   1km= 1000m   Then split 1000m by 2m =&gt; we have 500 sections or gaps   Then no.of poles is 500 + 1= 
<gadget id="calculator">500 + 1</gadget>
<output>501</output>
501 poles   Therefore n= 501.   ANSWER:501
<result>B</result>
A 1 k.m. long wire is held by n poles. If one pole is removed, the length of the gap becomes 12/3m. What is the number of poles initially?