The sum of 6 numbers is 528. Find their average.

Appeared in: DSSSB 6 September 2024

Explanation

The average, also known as the arithmetic mean, is calculated by dividing the sum of a set of numbers by the count of the numbers in that set.
The problem provides the sum of the numbers (528) and the count of the numbers (6).
The calculation is a straightforward division: 528 ÷ 6.
Performing the division gives the result of 88, which is the average of the six numbers.

Option B: This is an incorrect result of the division 528 ÷ 6. It may arise from a calculation error.
Option C: This is an incorrect result of the division 528 ÷ 6. It represents a simple miscalculation.
Option D: This is an incorrect result of the division 528 ÷ 6. It is a plausible but mathematically incorrect choice.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Calculating the arithmetic mean (average) from a given sum and count as background academic context rather than a clinical decision trigger.
Calculating averages is a core skill for nurses, used daily for tasks like determining average vital signs (e.g., heart rate over a shift), mean arterial pressure (MAP), or average fluid intake/output over a specific period.
This skill is crucial for identifying trends in a patient's condition, assessing the effectiveness of treatments, and ensuring accurate medication dosage calculations.
What if? If a patient's total urine output over an 8-hour shift was 528 mL, the nurse would calculate the average hourly output as 528 mL ÷ 8 hours = 66 mL/hr. This helps in assessing renal function against expected norms (e.g., an output greater than 30 mL/hr).

How to Approach the Question

First, identify the key information provided in the question: the total sum (528) and the number of items (6).
Next, recall the definition of 'average' (also known as the mean), which is the sum of values divided by the number of values.
Then, set up the division problem: Average = Total Sum / Number of Items.
Perform the calculation: 528 ÷ 6.
Finally, compare your result with the given options to select the correct answer.

Concept Tested & Keywords

Concept Tested: Calculating the arithmetic mean (average) from a given sum and count.
Stem keywords: sum, numbers, average
Lead-in keywords: Find

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