Question

What is the mean of x, x+3, x+6, x+9 and  x+12 ?​

Answer 1

Answer:

Mean = x + 6

Step-by-step explanation:

Total of the terms = x + (x + 3) + (x+6) + (x+9) + (x +12) = 5x + 30

No. of terms = 5

Mean = Total of the terms / No. of terms

= (5x + 30) / 5

= 5 (x + 6) / 5

= (x + 6)