what statement from the article draws a conclusion
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HESI A2

HESI A2 Reading Comprehension Practice Test

1. What statement from the article draws a conclusion?

Correct answer: C

Rationale: The correct answer is C: 'It is interesting to discover new ways to do things.' This statement draws a conclusion by summarizing the learning experience mentioned throughout the article. It reflects on the diversity of eating habits across cultures and the fascination in discovering and adapting to new methods of accomplishing tasks. Choice A is incorrect as it describes a fact rather than drawing a conclusion. Choice B is incorrect as it also presents a historical fact without concluding or summarizing any information. Choice D is incorrect because it states a fact about the challenges of space travel without offering a concluding remark or summarizing the topic.

2. Donald earns 8% of the selling price of each house he sells. If he sells a house for $152,000, how much does he earn?

Correct answer: B

Rationale: To calculate how much Donald earns from selling a house for $152,000 at an 8% commission rate, we multiply the selling price by the commission rate: $152,000 x 0.08 = $12,160. Therefore, he earns $12,160. Choice A, $12,160, is the correct answer as calculated. Choices C and D are incorrect amounts as they do not result from the given information. Choice C, $19,000, is significantly higher than the correct calculation, and choice D, $21,600, is the result of incorrectly adding the commission to the selling price instead of calculating the commission earned.

3. Which substance shows a decrease in solubility in water with an increase in temperature?

Correct answer: C

Rationale: Potassium iodide (KI) shows a decrease in solubility in water with an increase in temperature. This is due to the dissolution of KI in water being an endothermic process. When the temperature rises, the equilibrium shifts toward the solid state, leading to a decrease in solubility. Therefore, as the temperature increases, KI becomes less soluble in water. Choice A (NaCl) and Choice D (CaCl) do not exhibit a decrease in solubility with an increase in temperature. NaCl and CaCl are generally more soluble in water at higher temperatures. Choice B (Oxygen) is a gas and not typically considered in solubility discussions involving solids or liquids dissolving in water.

4. Radioactive isotopes are frequently used in medicine. What kind of half-life would a medical isotope probably have?

Correct answer: B

Rationale: Medical isotopes used in diagnosis and treatment need to have a relatively short half-life to minimize radiation exposure to patients. If the half-life were too long (such as many years) or even years-long, the radiation would persist for too long and could be harmful to the patient. Seconds-long half-lives would not provide enough time for the isotope to be effective. Days-long half-lives strike a balance between providing enough time for the isotope to be used effectively and minimizing radiation exposure.

5. There was no _____ for the way she treated her boyfriend.

Correct answer: D

Rationale: The correct answer is 'D: Justification.' Justification means showing that an action is reasonable or right. In this context, it implies that there was no valid reason or excuse for the way she treated her boyfriend. Choices A, B, and C are incorrect. An 'alibi' is an excuse to explain one's whereabouts during a crime, not applicable here. 'Rational' means based on reason or logic, which does not fit the context of the sentence. 'Reasonable' means fair and sensible, but the sentence suggests a lack of valid explanation rather than fairness or sensibility.

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