Question

What comes next in the sequence?
1, 5, 9, 13, 17,21, 25,___

• A. 23
• B. 27
• C. 30
• D. 29

Answer 1

The correct option is D

29

Let us calculate the difference between consecutive terms in the given sequence:

• 5 - 1 = 4
• 9 - 5 = 4
• 13 - 9 = 4
• 17 - 13 = 4
• 21 - 17 = 4
• 25 - 21 = 4

We observe that the difference between two consecutive terms is 4. So, we need to add 4 to the last term to obtain the next term.

So the next number in the sequence = 25 + 4 = 29.