HESI A2 Math Practice Test 2024

Correct Answer: D

Rationale: To produce 6 eggs, 2 chickens are required. Therefore, to produce 24 eggs, we need to scale up the number of chickens proportionally. We can set up a ratio: 2 chickens produce 6 eggs, so 1 chicken produces 3 eggs. To produce 24 eggs, we need 8 chickens (24 eggs / 3 eggs per chicken). Therefore, the correct answer is D. Choice A (12 chickens) is incorrect because it does not account for the proportional relationship between the number of chickens and the number of eggs produced. Choice B (4 chickens) is incorrect because it does not consider the required number of chickens to produce the specified number of eggs. Choice C (3 chickens) is incorrect because it does not align with the proportional relationship established in the question.

Correct Answer: D

Rationale: To produce 6 eggs, 2 chickens are required. Therefore, to produce 24 eggs, we need to scale up the number of chickens proportionally. We can set up a ratio: 2 chickens produce 6 eggs, so 1 chicken produces 3 eggs. To produce 24 eggs, we need 8 chickens (24 eggs / 3 eggs per chicken). Therefore, the correct answer is D. Choice A (12 chickens) is incorrect because it does not account for the proportional relationship between the number of chickens and the number of eggs produced. Choice B (4 chickens) is incorrect because it does not consider the required number of chickens to produce the specified number of eggs. Choice C (3 chickens) is incorrect because it does not align with the proportional relationship established in the question.

Correct Answer: A

Rationale: To convert kilograms to grams, you need to multiply by 1000 as there are 1000 grams in 1 kilogram. Therefore, to find the number of grams in 4 kilograms, you would multiply 4 by 1000, which equals 4000 grams. So, the correct answer is A: 4000. Choice B (40) would be the result if you mistakenly multiplied by 10 instead of 1000. Choice C (500) is the result if you mistakenly added or subtracted a zero. Choice D (0) is clearly incorrect as there are grams in 4 kilograms.

Correct Answer: A

Rationale: To solve 7 1/8 + 2 4/12, first convert 2 4/12 to an improper fraction: 2 4/12 = 2 + 1/3 = 2 1/3 = 7/3. Now, add 7 1/8 and 7/3 by finding a common denominator, which is 24. 7 1/8 = 57/8. Add 57/8 and 7/3 to get 183/24. Simplify 183/24 to 9 11/24, which is the correct answer (A). Choices B, C, D are incorrect as they do not match the calculated result.

Correct Answer: A

Rationale: The correct answer is A (250 grams). To calculate the full RDI, we use the formula: RDI = Consumed Amount / Percentage Consumed. Given, Consumed Amount = 75 grams and Percentage Consumed = 30%. Therefore, RDI = 75 / 0.30 = 250 grams. The other choices are incorrect because they do not match the calculated value based on the given information. Choice B, C, and D are all higher than the correct calculation of 250 grams, so they do not align with the required amount based on the 30% consumption.