An electric pole, 14 metres high, casts a shadow of 10 metres. The height of a

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Question

An electric pole, 14 metres high, casts a shadow of 10 metres. The height of a tower that casts a shadow of 300 metres under similar conditions is: (in metres)

Options:

A . 140

B . 480

C . 420

D . 280

Answer: Option C
:
C

Let h represents the height of the tower that casts 300 m long shadow.

$\frac{14}{h} = \frac{10}{300}$
10 x h = 14 x 300

h = 420 metres

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