The series consists of consecutive odd numbers, each 2 greater than the previous one. We see 11, 13, 15 and 17 with differences of 2 throughout. Adding 2 to 17 gives 19. Therefore, 19 is the next consecutive odd number and fits the pattern.
Option A:
Option A is 18, which is an even number and would break the sequence of odd integers. It also changes the difference from 2 to 1, so it cannot be correct.
Option B:
Option B is 20, another even number, and is 3 greater than 17. This disturbs both the parity and the constant difference. Thus, it does not maintain the pattern.
Option C:
Option C is 21, which is odd but lies 4 units above 17 rather than 2. That disrupts the simple increase by 2 seen in the earlier terms. Therefore, 21 is not appropriate.
Option D:
Option D equals 19, an odd number exactly 2 more than 17. The extended series 11, 13, 15, 17, 19 keeps the same difference and parity property. Hence, this option correctly continues the sequence.
Comment Your Answer
Please login to comment your answer.
Sign In
Sign Up
Answers commented by others
No answers commented yet. Be the first to comment!