Question

How many odd numbers are there in the following sequence which are immediately followed by an odd number?
5 1 4 7 3 9 8 5 7 2 6 3 1 5 8 6 3 8 5 2 2 4 3 4 9 6

• A. $2$
• B. $3$
• C. $4$
• D. More than $4$

Answer 1

Answer: (D)

More than $4$

As given in the problem, we look for OO pattern.

in the given series this pattern occurs at

$51,73,39,57,31,15$

There are 6 such occurrences
Hence the answer is more than $4$