8 and 21 Average

8 and 21 average provides the comprehensive information about what is the average of 8 and 21, and how it is being calculated mathematically. To calculate the average, the given quantities 8 and 21 can be of any physical quantity but both should have been expressed in the same measurement units.

8 and 21 average:
= (8 + 21)/2,
= 29/2,
= 14.5

Hence,
the average of 8 and 21 is equal to 14.5

where,
8 and 21 physical quantities in same measurement units,
29 is the sum of quantities,
2 is the total number of quantities,
14.5 is the average of 8 and 21

The step-by-step work shows how to find what is the average of 8 and 21. The solution for 8 and 21 average is same for all the following queries but have to append the measurement units based on the measurement units of physical quantities being measured.

Unitless Measurement:
what is the average of 8 and 21?

Average Speed:
What is the average speed of a bus which covered the distance from point A to B at the speed of 8 mph (miles per hour) and B to C at the speed of 21 mph (miles per hour)?

Average Volume:
The volume of cylinder A is 8 gallons and cylinder B is 21 gallons, what is the average volume of cylinders?

Average Capacity:
A Lincoln theater has the volume of 8 seats and Brooklyn theater has the volume of 21 seats, what is the average capacity of the theaters?

Average Score or Marks:
John has scored 21 marks in mathematics and 8 marks in science in the examinations conducted. What is an average of marks John scored?


Solved Example:
what is the average of 8 and 21?

step 1 Address the input parameters and observe what to be found:
Input values:
Quantity A = 8
Quantity B = 21

What to be found:
Find the average of 8 and 21

step 2 Find the sum of quantities 8 and 21.
8 + 21 = 29

step 3 Find how many number of inputs:
The calculation involves two quantities 8 and 21, so the number of quantities is 2.

step 4 To find the average of 8 and 21, divide the sum of quantities 29 by the total number of quantities 2:
= 29/2
= 14.5
(8 + 21)/2 = 14.5

Hence,
14.5 is the average of 8 and 21.