Math HESI A2 Practice Test

Correct Answer: C

Rationale: To calculate the surface area of the rectangular box, you need to find the area of each face. The box has 6 faces, and each face's area is 40*30cm=1200cm². Therefore, the total surface area is 6*1200cm²=7200cm²=0.72m². Since one sheet covers 0.5m², you need 0.72m²/0.5m²=1.2 sheets of cardboard, which is equivalent to 1.2m². This is why option C, 1.2 sq m, is the correct answer. Option A (0.3 sq m), B (0.6 sq m), and D (1.8 sq m) are incorrect as they do not align with the correct calculation of the surface area of the rectangular box.

Correct Answer: C

Rationale: To convert quarts to ounces, you need to know that 1 quart equals 32 ounces. Therefore, 1.5 quarts would be 1.5 x 32 = 48 ounces. So, the correct answer is C (48 ounces). Choice A is incorrect as it incorrectly converts quarts to ounces. Choice B is half of the correct conversion. Choice D is double the correct conversion.

Correct Answer: A

Rationale: To find the time to wash 100 cars, we can set up a proportion: 30 cars / 15 minutes = 100 cars / x minutes. Cross multiply to get 30x = 1500, then divide by 30 to find x = 50 minutes. Therefore, the correct answer is A. Choice B, 55 minutes, is incorrect as it does not align with the calculation. Choice C, 30 minutes, is incorrect as it is the time to wash 60 cars, not 100. Choice D, 45 minutes, is incorrect as it does not match the calculated time of 50 minutes for washing 100 cars.

Correct Answer: B

Rationale: The correct answer is B (2.8 liters) because 1 quart is equivalent to 0.946 liters. Therefore, 3 quarts would be 3 * 0.946 = 2.838 liters, which is closest to 2.8 liters. Choice A (3.0 liters) is incorrect because it does not accurately convert quarts to liters. Choice C (2.5 liters) is incorrect as it underestimates the conversion. Choice D (3.5 liters) is incorrect as it overestimates the conversion. The most accurate conversion is 2.8 liters, making it the correct answer.

Correct Answer: B

Rationale: To convert liters to milliliters, you need to know that 1 liter is equal to 1000 milliliters. Therefore, to find how many milliliters are in 3 liters, you would multiply 3 by 1000, which equals 3000 milliliters. So, the correct answer is B: 3000 milliliters. A is incorrect because it is the result of multiplying 3 by 100, not 1000. C is incorrect because it is half of 3000, not the actual conversion. D is incorrect as it is one-tenth of the correct answer.