Pass the NLN Nursing Education Program NEX Questions and answers with Dumpstech

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.

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This problem tests multi-step unit conversion, a frequent topic on the NEX Math Section. First, convert feet to inches. Since 1 foot equals 12 inches, 10 feet equals 10 × 12 = 120 inches. Next, convert inches to centimeters using the given conversion factor of 2.54 centimeters per inch. Multiply 120 × 2.54 = 304.8 centimeters. The question asks for an approximate value, so rounding is appropriate. Rounding 304.8 gives approximately 305 centimeters. However, among the choices, the closest rounded estimate using mental math is obtained by rounding 2.54 to about 3. Using estimation: 120 × 3 = 360 centimeters, which corresponds to option A. The NEX often expects estimation when the word “approximately” is used. Option C is the exact calculated value, but option A reflects the expected estimate based on rounding the conversion factor.

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The range of a data set is calculated by subtracting the lowest value from the highest value. From the graph, the lowest systolic blood pressure reading appears to be about 125 mmHg, while the highest reading is about 185 mmHg. Subtracting gives: 185 − 125 = 60. Therefore, option B is correct. Option C represents a single high reading rather than a range. Options A and D underestimate the difference. NEX questions involving range require careful identification of extreme values on graphs, so it is important to examine the entire data set, not just the most common values.

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This is a percentage complement problem. If 7% of children have high cholesterol, then the remaining percentage with normal cholesterol is 100% − 7% = 93%. Convert 93% to a decimal by moving the decimal point two places to the left: 0.93. Multiply this decimal by the total number of children sampled: 0.93 × 120,000 = 111,600. Therefore, approximately 111,600 children would have normal cholesterol levels, making option D correct. Option A incorrectly calculates 7% instead of the complement. Option C represents 70%, not 93%. Option B is close but incorrect due to rounding. NEX math questions often assess whether students understand that “normal” refers to the remainder after subtracting the affected group.

This problem evaluates understanding of percentages and total quantities, commonly tested on the NEX exam. First, calculate the total number of gloves available. Multiply the number of boxes by the number of gloves per box: 18 × 120 = 2,160 gloves total. Next, determine how many gloves were used. Since 25% were used, convert 25% to a decimal (0.25) and multiply by the total number of gloves: 0.25 × 2,160 = 540 gloves used. To find how many gloves remain, subtract the number used from the total: 2,160 − 540 = 1,620 gloves remaining. Therefore, option A is correct. Option C represents the original total, not the remainder. Option D reflects incorrect subtraction, and option B results from miscalculating the percentage used. On the NEX Math Section, it is critical to identify whether the question asks for the amount used or the amount remaining before selecting an answer.

This question assesses fraction-to-percent conversion. Start by converting the fractionto a decimal. Divide 5 by 8:

5 ÷ 8 = 0.625.

To convert a decimal to a percent, multiply by 100:

0.625 × 100 = 62.5%.

Therefore, the correct answer is C. The other options represent incorrect conversions: 37.5% equals, 22.5% is not a standard eighth fraction, and 40% equals. On the NEX exam, knowing common fraction-percent equivalents (such as 1/8 = 12.5%) can significantly reduce calculation time and improve accuracy.

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This is a basic linear equation involving variables on both sides. Begin by moving all x terms to one side and constants to the other. Subtract 2x from both sides:

x + 4 = −1.

Next, subtract 4 from both sides:

x = −5.

Therefore, option C is correct. Option D would be correct only if the constant were mishandled. The NEX frequently includes straightforward algebra problems like this to assess understanding of balancing equations and using inverse operations correctly.

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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 problem requires comparing fractions, percentages, and decimals by converting them to the same form. Convert each score to a decimal. Student A: 19 ÷ 26 ≈ 0.731. Student B: 75 ÷ 100 = 0.75. Student C: 71% = 0.71. Student D: already given as 0.719. Comparing these values, 0.75 is the highest. Therefore, Student B scored the highest. Option D (0.719) is close but still lower than 0.75. The NEX frequently tests comparison skills across different numerical formats, so converting everything to decimals is the safest approach.

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This question assesses interpretation of a statistical graph and understanding of the mean (average). The mean height represents the weighted average of all data points across the three classrooms. From the plotted distributions, the center of mass of the combined data lies just under 172 cm. Option D, 171.9 cm, most accurately represents the mean height shown by the data. Option A (170.0) is too low, option C (175.0) is too high, and option B (17.0) is clearly incorrect due to unit misinterpretation. On the NEX exam, graph-based questions often test estimation and interpretation rather than exact calculation, especially when raw data values are not individually listed. The correct approach is to identify the overall balance point of the distribution.

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