I'll give you a question, please answer with step-by-step reasoning process.
Maiya has two sisters. The first sister is twice as old as Maiya. The first sister is 1 year younger than Maiya. Their average age is 5. How old is Maiya?

4
Their total age is 15 because 3 x 5 = 15.

15 - X - 2X - (X - 1) is equivalent to 16 = 4X.

Maiya is 4 years old because 16 / 4 = 4.

.

Thus, the answer is 4