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21 March, 23:46

1)

At 1 pm the shadow of a tree is 14 feet long. At the same time the shadow of a 18 foot telephone pole is 21 feet long. What is the height of the tree?

A) 9 feet

B) 12 feet

C) 18 feet

D) 22 feet

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Answers (1)
  1. 22 March, 00:11
    0
    Set up a ratio:

    telephone pole = 18ft high / 21ft shadow

    tree = x ft high / 14 ft shadow

    18/21 = x/14

    cross multiply 18 x 14 = 252

    21 x x = 21x

    x = 252 / 21

    x = 12

    the tree is 12 feet tall

    Answer is B
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