Question

At a particular time the length of the shadow of a building whose height is 80m is 100m. What will be the height of an electric pole, the length of whose shadow of the same time is 35m.
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Answer 1

$\boxed{ \bold{Correct \ answer } }$

$\textbf {28 m }$

Solution :

Given :

$\mapsto \textbf {Length \ of \ the \ building = 80m }$

$\mapsto\textbf{At \ a \ particular \ time \ its \ shadow =100 \ m}$

$\mapsto \textbf {Shadow \ of \ the \ electric \ pole \ has \ a \ length \ of \ = 35 \ m}$

 

 =    $\therefore \textbf { Length \ of \ the \ electric \ pole =}$ $\bold{\frac{80} {100} \times 35 m}$

$\bold{= \frac { 8 }{10} \times 35 m}$ $\bold{= \frac { 4 }{ 5 } \times 35 m}$  $\textbf{=28 m}$

$\boxed{\bold{ Length \ of \ the \ electric \ pole = 28 m } }$

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Answer 2

Answer:

thus the height of electrical pole is 28 metres.

see the attachment for the solution

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