HESI A2
HESI A2 Math Practice Test 2024
1. What is 25% of 400?
- A. 800
- B. 10,000
- C. 200
- D. 100
Correct answer: D
Rationale: To find 25% of a number, multiply the number by 0.25 (since 25% is the same as 25/100 or 0.25). In this case, 400 x 0.25 = 100. Therefore, 25% of 400 equals 100. Choice A, 800, is incorrect because it is the result of multiplying 400 by 2, not by 0.25. Choice B, 10,000, is also incorrect as it is significantly higher than the correct answer. Choice C, 200, is incorrect as it is the result of dividing 400 by 2, not by 0.25.
2. A 10-kg object moving at 5 m/s has an impulse acted on it causing the velocity to change to 15 m/s. What was the impulse that was applied to the object?
- A. 10 kg⋅m/s
- B. 15 kg⋅m/s
- C. 20 kg⋅m/s
- D. 100 kg⋅m/s
Correct answer: D
Rationale: Impulse is the change in momentum of an object. The initial momentum is calculated as 10 kg × 5 m/s = 50 kg⋅m/s, and the final momentum is 10 kg × 15 m/s = 150 kg⋅m/s. The change in momentum (impulse) is 150 kg⋅m/s - 50 kg⋅m/s = 100 kg⋅m/s. Therefore, the impulse applied to the object is 100 kg⋅m/s. Choices A, B, and C are incorrect because they do not reflect the correct calculation of the impulse based on the change in momentum of the object.
3. If Randy sells 8 times as many vacuum cleaners as Janice, and Janice sells 690 vacuum cleaners per year, on average, how many does Randy sell each month?
- A. 4,600
- B. 5,520
- C. 6,400
- D. 8,320
Correct answer: B
Rationale: If Janice sells 690 vacuum cleaners per year, Randy sells 8 times that amount, which is 690 x 8 = 5,520 vacuum cleaners per year. To find out how many Randy sells each month, you divide 5,520 by 12 (months), which equals 460 vacuum cleaners per month. Therefore, Randy sells 5,520 vacuum cleaners per year divided by 12 months, which equals 460 vacuum cleaners per month. Choices A, C, and D are incorrect as they do not reflect the correct calculation based on the information provided.
4. Select the meaning of the word in the sentence: 'The dog developed bilateral weakness in its hindquarters.'
- A. Present on two sides
- B. Available for exercise
- C. Affecting the left side
- D. Affecting the right side
Correct answer: A
Rationale: "Bilateral" refers to something that affects or involves both sides of the body, making "Present on two sides" the correct answer. The other options refer to one-sided or unrelated conditions.
5. What is the meaning of perused?
- A. Passed judgment on
- B. Engaged in
- C. Read thoroughly
- D. Took notes about
Correct answer: C
Rationale: The correct answer is C: 'Read thoroughly.' The word 'perused' means to read or examine carefully or in detail. It does not imply passing judgment, engaging in, or taking notes. Choices A, B, and D are incorrect because 'perused' specifically refers to reading thoroughly, not making judgments, participating in, or taking notes.
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