The sum of 6 numbers is 468. Find their average.

Appeared in: DSSSB October 2024

Explanation

The average, or arithmetic mean, is a measure of central tendency calculated by dividing the total sum of a set of values by the number of values in the set.
The problem provides the sum of the numbers (468) and the count of the numbers (6).
The formula for the average is: Average = Sum of values / Count of values.
Substituting the given values: Average = 468 ÷ 6.
Performing the division correctly yields 78.

Option A: This is an incorrect result obtained from the division of 468 by 6. It may be due to a calculation error.
Option C: This is an incorrect result from the division. It represents a miscalculation.
Option D: This is an incorrect result from the division, likely a simple arithmetic mistake.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Calculation of Arithmetic Mean (Average) as background academic context rather than a clinical decision trigger.
While this is a basic math question, the concept of averages is fundamental in nursing practice for establishing baselines and monitoring trends.
Nurses calculate average hourly urine output to assess renal function and hydration status.
Averages are used to determine a patient's baseline vital signs (e.g., heart rate, respiratory rate) over a period to identify significant deviations.

How to Approach the Question

First, read the question carefully to identify the given information. Here, the sum is 468 and the count is 6.
Next, identify what needs to be calculated. The question asks for the average.
Recall the fundamental formula for calculating an average: Average = Sum / Count.
Substitute the given values into the formula: Average = 468 / 6.
Perform the mathematical division to find the result.
Finally, match your calculated result (78) with the given options to select the correct answer.

Concept Tested & Keywords

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Practise the full DSSSB October 2024

Attempt every question from this paper in a timed mock, then review the full solution for each one.