HESI A2 Practice Test Math

Correct Answer: A

Rationale: To find the number of floors, divide the total height of the building (150 feet) by the height of each floor (12 feet). 150 ÷ 12 = 12.5. Since we cannot have a fraction of a floor, we must round down to the nearest whole number, which is 13. Therefore, the correct answer is A: 13 floors. The other choices are incorrect because they do not accurately represent the result of dividing the total height by the height of each floor.

Correct Answer: B

Rationale: The correct answer is B: 5.3 hours. To calculate the total time taken, we sum up the time taken for each set of 6 miles: 1 hour + 1.2 hours + 1.5 hours + 1.6 hours = 5.3 hours. This is the correct answer because it accounts for the time taken for each segment of the 24-mile course. Choice A: 5 hours is incorrect because it does not include the time taken for the last 6 miles. Choice C: 4 hours is incorrect as it is the time taken for only the first 18 miles, excluding the final 6 miles. Choice D: 6 hours is incorrect as it overestimates the total time taken by including additional time not accounted for in the question.

Correct Answer: B

Rationale: To find the number of boys, we first calculate 44% of 25 (total students). This gives us 0.44 * 25 = 11 boys. Therefore, the correct answer is B. Choice A (10 boys) is incorrect as it is based on rounding down from 44%, and choices C (9 boys) and D (13 boys) are incorrect as they do not match the calculated 11 boys.

Correct Answer: A

Rationale: The correct answer is A: 3 tablets. To reach the daily intake of 1,500 mg of calcium, the patient should take 1,500 mg ÷ 500 mg per tablet = 3 tablets. Taking 3 tablets will provide the required 1,500 mg of calcium. Choice B (4 tablets) would exceed the required amount, choice C (2 tablets) would be insufficient, and choice D (5 tablets) would exceed the required amount as well. Therefore, A (3 tablets) is the correct answer.

Correct Answer: C

Rationale: To calculate the number of mils in 1.5 grams, we first convert 1.5 grams to milligrams: 1.5g * 1000mg/g = 1500mg. Then, we divide 1500mg by the amount in 1 mil (500mg/mil) to get 3 mils. Choice C is correct. Choices A, B, and D are incorrect because they do not follow the correct conversion process. Choice A (9 mils) results from dividing 1500mg by 500mg, which is incorrect. Choice B (2 mils) and Choice D (5 mils) also do not yield the correct answer when dividing 1500mg by 500mg.