GED - General Educational Development Mathematical Reasoning 1 — Questions and Answers
Question 1: What is the value of 3 + 4 × 2 − 1?
- 13
- 10 (Correct answer)
- 14
- 6
Correct answer: 10
By order of operations (PEMDAS), multiplication is performed before addition and subtraction: 4 × 2 = 8, then 3 + 8 − 1 = 10.
Question 2: A shirt originally costs $45 and is on sale for 20% off. What is the sale price?
- $9.00
- $36.00 (Correct answer)
- $25.00
- $54.00
Correct answer: $36.00
20% of $45 = 0.20 × 45 = $9. Subtracting the discount: $45 − $9 = $36.
Question 3: Solve for x: 2x + 5 = 17
- x = 6 (Correct answer)
- x = 11
- x = 5
- x = 7
Correct answer: x = 6
Subtract 5 from both sides: 2x = 12. Divide both sides by 2: x = 6.
Question 4: A rectangle has a length of 8 feet and a width of 5 feet. What is its area?
- 26 square feet
- 13 square feet
- 40 square feet (Correct answer)
- 30 square feet
Correct answer: 40 square feet
Area of a rectangle = length × width = 8 × 5 = 40 square feet. The perimeter (26 ft) is found by adding all sides, not multiplying.
Question 5: What is the mean (average) of 12, 18, 24, 6, and 10?
- 14 (Correct answer)
- 70
- 18
- 12
Correct answer: 14
Add all values: 12 + 18 + 24 + 6 + 10 = 70. Divide by the count of numbers (5): 70 ÷ 5 = 14.
Question 6: A store buys an item for $80 and sells it for $100. What is the percent markup on the cost?
- 20%
- 25% (Correct answer)
- 80%
- 125%
Correct answer: 25%
Percent markup = (selling price − cost) ÷ cost × 100 = (100 − 80) ÷ 80 × 100 = 20 ÷ 80 × 100 = 25%. The base is the original cost ($80), not the selling price.
GED - General Educational Development Mathematical Reasoning 1
What is the value of 3 + 4 × 2 − 1?