HESI A2 Practice Test Math

Correct Answer: A

Rationale: To subtract mixed numbers, convert them to improper fractions. 3 4/5 = 19/5 and 7 7/10 = 77/10. Subtracting gives 19/5 - 77/10 = 38/10 - 77/10 = -39/10. Convert back to a mixed number: -39/10 = -3 9/10 (choice A). Other choices are incorrect as they do not match the correct result.

Correct Answer: B

Rationale: To convert ounces to pints, we know that 1 pint is equal to 16 ounces. Therefore, to find how many pints are in 56 ounces, we divide 56 by 16, which equals 3.5 pints. Hence, the correct answer is B: 3.5 pints. A: 3 pints - Incorrect. 56 ounces is more than 3 pints. C: 7 pints - Incorrect. 56 ounces equals 3.5 pints, not 7 pints. D: 8 pints - Incorrect. 56 ounces is less than 8 pints.

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: A

Rationale: The correct answer is A (175 mg). To find out how much calcium is left, subtract the lost amount (325 mg) from the original amount (500 mg): 500 mg - 325 mg = 175 mg. This calculation shows that 175 mg of calcium are left in the expired vitamin. Choice B (135 mg) is incorrect because it does not account for the correct subtraction of the lost amount. Choice C (185 mg) and Choice D (200 mg) are also incorrect as they do not reflect the accurate calculation based on the given information.

Correct Answer: B

Rationale: To find the result of dividing 40.3 by 4.8, you divide 40.3 by 4.8 which equals approximately 8.4. The correct answer is B. To see why the other choices are incorrect: A: 7.5 - Incorrect, as it is not the result of 40.3 divided by 4.8. C: 6.2 - Incorrect, as it is not the result of 40.3 divided by 4.8. D: 9.1 - Incorrect, as it is not the result of 40.3 divided by 4.8.