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There is a 1 km long wire. It has been fixed around a wall of the building with the help of some poles between 2 telephone towers. It is noticed that if there is a increase of 1 2/3 m in width of 2 poles then there is a need of 1 pole less. How many poles were used?

Read Solution (Total 2)

26 poles
If there are n gaps earlier , then n+1 poles are there.
and
1000/n + 5/3 = 1000(n-1)

solving it, we get n =25

so there are 26 poles.
12 years agoHelpfull: Yes(0) No(0)

So gap becomes 12/3 with 1 less pole ...

Let n be the no of poles ..

(1000/n-1)=12/3

ans:- 251 poles
10 years agoHelpfull: Yes(0) No(0)

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