NEX Exam Dumps - NLN Nursing Education Program Questions and Answers

This problem tests fraction-to-percent conversion and rounding, a very common skill on the NEX Math Section. First, simplify the fraction if possible. The fraction 3/15 can be reduced by dividing both the numerator and denominator by 3. This gives 1/5. Simplifying first makes the calculation easier and reduces the chance of errors. Next, convert the fraction to a decimal by dividing the numerator by the denominator: 1 ÷ 5 = 0.2. To convert a decimal to a percent, multiply by 100. Thus, 0.2 × 100 = 20.0%. The question asks for the answer rounded to the nearest tenth place. Since 20.0 already has one decimal place, no additional rounding is needed. Therefore, the correct answer is 20.0%, which corresponds to option A. Option B (0.2%) incorrectly leaves the value as a decimal percent. Option C (5.0%) is a common mistake from dividing 3 by 60. Option D (33.3%) would be correct for 1/3, not 3/15.

Fossils are the preserved remains or traces of organisms that lived in the past. Fossilization can occur in several ways, including burial in sediment, preservation in amber, or freezing in ice. These conditions prevent decay and allow organisms or parts of organisms to remain intact for thousands or even millions of years. Fossils provide critical evidence for understanding evolution, extinct species, and changes in life on Earth over time. The terms remnants, ancestors, and relics are not scientifically precise terms used to describe preserved organisms in geology or biology. The NEX Science section often focuses on basic concepts of evolution and Earth history, making fossil identification an important topic.

======

This problem tests estimation and interpretation of scatter plots. The first 10 measurements (before the red line) cluster around an average of approximately 140 mmHg. The second set of 10 measurements (after the red line) cluster around approximately 170 mmHg. To estimate the increase, subtract the earlier average from the later average: 170 − 140 = 30 points. Therefore, option C is correct. Options A and D represent total values rather than the change between averages. Option B overestimates the difference. On the NEX, estimation questions do not require exact calculations; instead, you must identify reasonable average values from visual data and compare them correctly.

======

The passage emphasizes that preventive screenings allow health problems to be identified before symptoms appear. Option C accurately reflects this benefit. The other options are either incorrect or exaggerated. On the NEX exam, benefit questions often focus on early intervention and prevention themes.

======

The passage lists several benefits of exercise, including improved cardiovascular health, stress management, improved mood, and reduced chronic disease risk. Option B is explicitly mentioned, making it the correct answer. The other options introduce benefits not discussed in the passage. On the NEX exam, detail-based questions require careful reading to identify information that is directly stated rather than inferred. Choosing only what is explicitly mentioned is key.

======

Starch and glycogen are both polysaccharides, which are complex carbohydrates composed of many glucose units. Starch is the primary storage form of glucose in plants, while glycogen is the storage form of glucose in animals, particularly in the liver and muscles. Carbohydrates serve as a major energy source for cells. Nucleic acids store genetic information, proteins perform structural and enzymatic functions, and lipids are involved in energy storage and membrane structure. The NEX Science exam often tests classification of biomolecules and their functions, making carbohydrates the correct answer.

======

Blood flows in a continuous loop through the cardiovascular system. It is pumped from the heart into arteries, which carry oxygenated blood away from the heart. Arteries branch into smaller vessels that lead to capillaries, where gas and nutrient exchange occurs. Blood then flows into veins, which return deoxygenated blood back to the heart. The other options list structures in an incorrect order. Understanding blood flow pathways is a fundamental concept on the NEX Science exam and is essential for interpreting cardiovascular function and disorders.

======

This problem involves solving a linear equation with fractions. First convert the mixed numberto an improper fraction or decimal.

Addto both sides to isolate the term with x:

Now divide both sides by 3:

Therefore, option D is correct. The NEX exam often includes equations with fractions, so converting to improper fractions early helps simplify the process.

This is a unit-conversion problem involving yards, feet, and inches. First, convert yards to feet. Since 1 yard equals 3 feet, multiply: 2.5 × 3 = 7.5 feet. Next, convert feet to inches using the given conversion of 12 inches per foot. Multiply: 7.5 × 12 = 90 inches. Therefore, the correct answer is C. Option A (72 inches) represents only 6 feet. Option B (45 inches) results from converting yards directly to inches incorrectly. Option D (54 inches) represents 4.5 feet. On the NEX exam, multi-step measurement conversions are common, and accuracy depends on converting one unit at a time rather than skipping steps.

======

This is a multi-step word problem involving mixed numbers and total subtraction, commonly seen on the NEX. First calculate Nurse A’s total hours:. Multiply by 5 days:hours. Next, calculate Nurse B’s total hours:. Multiply by 4 days:hours. Now add the hours worked by Nurses A and B:

41.25 + 42 = 83.25 hours (or).

Subtract this from the total combined hours:

130 − 83.25 = 46.75 hours.

Convert 0.75 to a fraction:.

So Nurse C workedhours, making option D correct. The NEX often tests accurate step-by-step calculation with workplace scenarios.

======