Adeyemi who is 15 years old is 3 years older than his younger brother ojo. If oloyede their eldest brother is 21year old, what is the average age of the three brothers?

Answer 1

To find the average age of the three brothers, we need to find the total age of the three brothers and then divide it by 3 (the number of brothers).

Adeyemi is 3 years older than Ojo, so if Ojo is x years old, Adeyemi is x + 3 years old.

We are given that Oloyede, their eldest brother, is 21 years old.

So, the total age of the three brothers is x + (x + 3) + 21.

Now, we can write an equation to solve for x:

x + (x + 3) + 21 = (2x + 24).

We know that Adeyemi is 15 years old, so we can substitute that into the equation:

15 = (2x + 24).

Simplifying the equation, we have:

2x + 24 = 15.

Subtracting 24 from both sides, we get:

2x = -9.

Dividing both sides by 2, we have:

x = -4.5.

Since it doesn't make sense for someone to have a negative age, we can conclude that there was an error in the information given.

Therefore, we cannot determine the average age of the three brothers with the given information.