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GED Test (Mathematical Reasoning, Science, Social Studies, Reasoning Through Language Arts)

Measurement, geometry and data: practice questions

Our GED bank has 42 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.

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Question 1

Find the median of: 2, 5, 7, 10.

  1. 5
  2. 7
  3. 6.5
  4. 6
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D. 6 — With an even count, average the two middle values: (5 + 7) ÷ 2 = 6.

Question 2

A scatter plot shows that the more hours students study, the higher their scores. This is a:

  1. No correlation
  2. Constant function
  3. Negative correlation
  4. Positive correlation
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D. Positive correlation — Both values increase together, so the correlation is positive.

Question 3

In a dot plot, the values are: 1 shown 2 times, 2 shown 3 times, 3 shown 5 times. What is the mean?

  1. 2.5
  2. 2.3
  3. 2
  4. 3
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B. 2.3 — (1×2 + 2×3 + 3×5) ÷ 10 = 23 ÷ 10 = 2.3.

Question 4

A rectangle has a perimeter of 40 m and a length of 12 m. What is its width?

  1. 28 m
  2. 16 m
  3. 3.3 m
  4. 8 m
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D. 8 m — P = 2l + 2w: 40 = 24 + 2w, so w = 8.

Question 5

A 13-ft ladder leans against a wall with its base 5 ft from the wall. How high up the wall does it reach?

  1. 18 ft
  2. 8 ft
  3. 13.9 ft
  4. 12 ft
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D. 12 ft — 5² + h² = 13²: h² = 169 − 25 = 144, h = 12.

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