Question

The average age of 8 boys is 16 year if the age of 1 more boy is added to it the average age isincrease by 1 year the is the ageof the new boys

Answer 1

Answer:

25 years old

Step-by-step explanation:

Find the total age of the 8 boys:

Average = 16 years

Sum = 16 x 8 = 128 years

Find the total age of the 9 boys:

Average = 16 + 1 = 17 years

Sum = 17 x 9 = 153 years

Find the age of the new boy:

Age of the new boy = 153 - 128 = 25

Answer: The new boy is 25 years old.

Answer 2

Answer:

25 years

Step-by-step explanation:

It is given that the average age of 8 boys is 16 years  .

So it will be x / 8 = 16 or  x = 16 x 8 = 128

It is given that age of one more boy is added and also the average age is increased by one year.

Now one more boy is added to the group which will be 9 boys and the years will be increased to 17 years.

So it will be 17 x 9 = 153

we have 153 - 128 = 25 years 25 years

The age of new boy is