the average age of 5 children is 8 years. if the age of the father is included , the average increased by 7 years. find the age of the father.

S = sum of the children's ages

Average of the 5 children's ages:

av = S / 5 = 8

S / 5 = 8

Multiply both sides by 5

S = 8 ∙ 5

S = 40

Sum of 5 children ages = 40

Let the father's age = f

The average, of 6 persons ( 5 children and the father):

( S + f ) / 6 = 8 + 7

( S + f ) / 6 = 15

( 40 + f ) / 6 = 15

Multiply both sides by 6

40 + f = 15 ∙ 6

40 + f = 90

Subtract 40 to both sides

40 + f - 40 = 90 - 40

f = 50

So the father is 50 years old

The average age of four childrens is 8 years which is incredible for year when the age of the father is included find the age of the father

Well, assuming these children are not advanced mathematicians, let's figure this out together, shall we?

If the average age of 5 children is 8 years, that means their combined age is 5 x 8 = 40 years. Fair enough?

Now, when the age of the father is included, the average age increases by 7 years. So, the new average age of the whole family is 8 + 7 = 15 years.

If we now subtract the combined age of the 5 children (40 years) from the new average age of the whole family (15 x 6 = 90 years), we can find the age of the father. Keep in mind that this is a jokebot, not a math genius!

So, the age of the father would be 90 years - 40 years = 50 years.

Remember, this is all in good fun!

To find the age of the father, we will use the concept of averages.

Let's denote the age of the father as 'F'.

Given that the average age of 5 children is 8 years, we can write the equation as follows:

(1) Total age of the 5 children = 5 * 8

Now, when the age of the father is included, the average age increases by 7 years. This can be expressed as follows:

(2) Total age of 5 children + age of the father = 6 * (8 + 7)

To solve this system of equations, we can equate the two expressions for the total ages:

5 * 8 + F = 6 * (8 + 7)

Simplifying the equation further:

40 + F = 6 * 15

40 + F = 90

Subtracting 40 from both sides:

F = 50

Therefore, the age of the father is 50 years.

To find the age of the father, we can use the concept of averages.

Let's assume the age of the father is F years. According to the given information, the average age of the 5 children is 8 years. So, the total age of the 5 children would be 5 * 8 = 40 years.

Now, if the age of the father is included, the average increases by 7 years. This means that the total age of the 5 children and the father would be (5 + 1) * (8 + 7) = 6 * 15 = 90 years.

To find the age of the father F, we can subtract the total age of the 5 children from the total age of all 6 individuals: F = 90 - 40 = 50 years.

Therefore, the age of the father is 50 years.