Question

Three siblings are one year apart inage. If the oldest is x years old, what is the average of their ages?

Answer 1

Answer:

x - 1

Step-by-step explanation:

x

x - 1

x - 2

x + (x - 1) + ( x - 2)

3x - 3

3(x - 1)

Average

3(x - 1)/3

x - 1