Question #4b2cd

1 Answer
Aug 25, 2017

108

Explanation:

Long method:

Let the first number be x. We know that, consecutive odd numbers have difference of 2

So, the numbers are

x,x+2,x+4,x+6,x+8,x+10,x+12,x+14,x+16

It is stated that the third term (x+4) is equal to 9

x+4=9

x=94=5

So, insert the value of x in the sequence to get the sum

(5)+(5+2)+(5+4)+(5+6)+(5+8)+(5+8)+(5+10)+(5+12)+(5+14)+(5+16)

5+7+9+11+13+15+17+19+21

108

Hope this helps!!!