NLN NEX - Nursing Entrance Exam (Math, Science and Verbal)

Monitor means to watch, observe, or check regularly. Option A best matches this meaning. Monitoring is a common healthcare term.

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The passage states that lack of sleep weakens immune function and increases susceptibility to illness. This supports the conclusion that adequate sleep supports immune health. Option C accurately reflects this relationship. Options A and D contradict the passage, while option B exaggerates the effect. NEX questions often test the ability to infer logical conclusions without overgeneralizing.

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This question tests percent decrease, a common NEX topic. First find the amount of decrease: 50 mg − 40 mg = 10 mg. Next divide the decrease by the original amount:

10 ÷ 50 = 0.2.

Convert the decimal to a percent by multiplying by 100:

0.2 × 100 = 20%.

Therefore, the correct answer is B. Option D represents the numerical decrease without considering the original value. Option A and C result from incorrect division. On the NEX exam, percent change problems always use the original value as the denominator.

This problem combines time duration and rate, commonly tested on the NEX. The first recovery phase lasts 12 weeks. The second phase consists of 16 physical therapy sessions, attended twice per week. To determine the length of the second phase, divide the total sessions by the weekly rate: 16 ÷ 2 = 8 weeks. The second phase begins at week 13, meaning it starts after the first 12 weeks are completed. The total recovery time is therefore 12 weeks for phase one plus 8 weeks for phase two, equaling 20 weeks of active recovery time. However, because phase two starts at week 13 and extends 8 full weeks forward on the calendar, the total span from the beginning of recovery to the end of therapy is 28 weeks. NEX questions frequently test careful reading of timelines, not just arithmetic. Option B correctly reflects the full duration from start to finish.

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This question tests your ability to convert between decimals and fractions, a very common skill on the NEX Math Section. Start by understanding the decimal value. The decimal 0.04 means four hundredths, which can be written as the fraction 4/100. The next step is to simplify this fraction by dividing both the numerator and the denominator by their greatest common factor, which is 2. Doing so gives 2/50. That fraction exactly matches option C, making it the correct answer. To verify, you can also convert 2/50 back into a decimal by dividing 2 by 50, which equals 0.04. The other options are incorrect because they represent much larger values. For example, 1/4 equals 0.25, 2/5 equals 0.4, and 2/500 equals 0.004. On the NEX exam, remembering that two decimal places correspond to hundredths can help you quickly form the correct fraction before simplifying.

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This is a rate and proportion problem. First, determine how many miles the car travels per gallon. Since the car travels 15.6 miles on

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of a gallon, divide: 15.6 ÷ 0.75 = 20.8 miles per gallon. Next, multiply this rate by the total number of gallons: 20.8 × 5 = 104 miles. Therefore, option C is correct. Option A represents miles per gallon, not total distance. Option B is a partial multiplication error. Option D results from multiplying before finding the correct rate. NEX questions frequently assess whether students can correctly identify unit rates before scaling up.

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This is a ratio and proportion problem. The given ratio is 5 grams of acid for every 3 liters of water. First determine how many groups of 3 liters are in 24 liters: 24 ÷ 3 = 8. Each group requires 5 grams of acid, so multiply: 8 × 5 = 40 grams. Therefore, option C is correct. Option D results from dividing instead of multiplying. Option B is excessively large and unrealistic. Ratio problems on the NEX require identifying the scaling factor before multiplying.

This problem tests fraction multiplication and proportional reasoning. One American dollar equalsof an English pound. An American quarter is one-fourth of a dollar. To find its value in pounds, multiply the value of one dollar by:

Therefore, the correct answer is option C. Option A results from dividing incorrectly. Option B reflects an unrelated fraction. Option D incorrectly multiplies denominators. On the NEX exam, currency and proportion problems often require recognizing that smaller units represent a fraction of a whole and applying multiplication rather than division.

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This question assesses understanding of the median, which is the middle value when data are ordered from least to greatest. First, list the refunds in ascending order:

$500, $500, $857, $1,500, $2,500, $3,000, $6,753.

There are seven values total, so the median is the fourth value in the ordered list. The fourth value is $1,500. Therefore, option D is correct. Option B represents the mode (most frequent value), not the median. Options A and C are averages or midpoints that do not correspond to the true median position. On the NEX exam, students are frequently tested on distinguishing mean, median, and mode, so remembering that the median is strictly positional—not calculated—is essential.

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