SOLUTION: What is the common difference in this sequence? 5 21 37 17 21 29

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Question 250418: What is the common difference in this sequence?

5
21
37
17
21
29
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
What is the common difference in this sequence?

5
21
37
17
21
29
There is no common difference in them.  They have to be
spaced evenly apart to have a common difference.

21-5 = 16
37-21 = 16

So the sequence of the first three only

5 
21
37 

have a common difference of 16.

But the next number would have to be 53 so that

53-37 = 16

But it isn't.

I don't know why your teacher would expect you to find
a common difference when there is none.

Edwin