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Praxis II Mathematics Content Knowledge Exam Prep

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A 100 ft tape was used to measure a horizontal line found to be 1,500 ft. The tape was then compared with a standard and found to be only 99.97 ft in length. The true length of the measured line is:

  1. 1,499.00
  2. 1,499.55 ft
  3. 1,500.00 ft
  4. 1,500.45 ft
Explanation

Answer: B - The true length of the measured line is 1,499.55 ft.

Solution

True length of horizontal line = (measured distance) x (steel tape length ÷ standard tape length)

True length = (1,500 ft) x (99.97 ft ÷ 100 ft)

True length = 1,499.55 ft

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