9 and 31 Average

9 and 31 average provides the comprehensive information about what is the average of 9 and 31, and how it is being calculated mathematically. To calculate the average, the given quantities 9 and 31 can be of any physical quantity but both should have been expressed in the same measurement units.

9 and 31 average:
= (9 + 31)/2,
= 40/2,
= 20

Hence,
the average of 9 and 31 is equal to 20

where,
9 and 31 physical quantities in same measurement units,
40 is the sum of quantities,
2 is the total number of quantities,
20 is the average of 9 and 31

The step-by-step work shows how to find what is the average of 9 and 31. The solution for 9 and 31 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 9 and 31?

Average Speed:
What is the average speed of a bus which covered the distance from point A to B at the speed of 9 mph (miles per hour) and B to C at the speed of 31 mph (miles per hour)?

Average Volume:
The volume of cylinder A is 9 gallons and cylinder B is 31 gallons, what is the average volume of cylinders?

Average Capacity:
A Lincoln theater has the volume of 9 seats and Brooklyn theater has the volume of 31 seats, what is the average capacity of the theaters?

Average Score or Marks:
John has scored 31 marks in mathematics and 9 marks in science in the examinations conducted. What is an average of marks John scored?


Solved Example:
what is the average of 9 and 31?

step 1 Address the input parameters and observe what to be found:
Input values:
Quantity A = 9
Quantity B = 31

What to be found:
Find the average of 9 and 31

step 2 Find the sum of quantities 9 and 31.
9 + 31 = 40

step 3 Find how many number of inputs:
The calculation involves two quantities 9 and 31, so the number of quantities is 2.

step 4 To find the average of 9 and 31, divide the sum of quantities 40 by the total number of quantities 2:
= 40/2
= 20
(9 + 31)/2 = 20

Hence,
20 is the average of 9 and 31.