Question

The average age of Ria and her 4 friends is 24 years. Their ages are (3m - 2), (2m + 7), (4m – 7), (3m), (3m + 2) respectively. Find the value of 'm'​

Answer 1

Answer:

Given average is 24

So,

3m-2 + 2m+7 + 4m-7 + 3m + 3m+2 = 15m

15m/5=24

3m=24

m=8

Answer 2

Answer:

By using algebra methods, the value of 'm' is 8.

Step-by-step explanation:

Average

The expression of a set of data's central value is a list of data averaged together. The ratio of the total number of data points to the number of units in the list is how it is defined mathematically. The average of a certain set of numerical data is sometimes referred to as the mean in statistics.

Algebra

The study of number theory, geometry, and analysis is covered in one of the oldest subfields of mathematics, known as algebra. Algebra is defined as the study of mathematical rules and symbols by manipulation of such symbols, according to certain definitions.

Given,

The average of 5 friends = 24

The age of all the friends are (3m - 2), (2m + 7), (4m – 7), (3m), (3m + 2).

So, using average concept,

average of the values = sum of all the values / total number of values

we get,

((3m - 2) + (2m + 7) + (4m – 7) + (3m) + (3m + 2))/5 = 24

⇒ 15m/5 = 24

⇒ 3m = 24

⇒ m = 8

Hence, the value of m is 8.

To learn more about the average, click on the link below:

https://brainly.in/question/49813929

To know more about the algebra, click on the link below:

https://brainly.in/question/1279560

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