Consider the following sequence of numbers:
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

How many odd numbers are followed by an odd number in the above sequence?

Correct Option: (b) 6

Let us examine the given sequence of numbers: 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. We need to find how many odd numbers are immediately followed by an odd number (Odd followed by Odd). Let us identify odd numbers in the sequence and check the next number: 5 (next is 1 - Odd), 1 (next is 4 - Even), 4, 7 (next is 3 - Odd), 3 (next is 9 - Odd), 9 (next is 8 - Even), 8, 5 (next is 7 - Odd), 7 (next is 2 - Even), 2, 6, 3 (next is 1 - Odd), 1 (next is 5 - Odd), 5 (next is 8 - Even), 8, 6, 3 (next is 8 - Even), 8, 5 (next is 2 - Even), 2, 2, 4, 3 (next is 4 - Even), 4, 9 (next is 6 - Even), 6. Let us list all pairs where an odd number is followed by an odd number: 1) 5, 1; 2) 7, 3; 3) 3, 9; 4) 5, 7; 5) 3, 1; 6) 1, 5. Let us recount carefully: Sequence: 5, 1 (1), 4, 7, 3 (2), 3, 9 (3), 8, 5, 7 (4), 2, 6, 3, 1 (5, 6), 5, 8, 6, 3, 8, 5, 2, 2, 4, 3, 4, 9, 6. Total count is 6 pairs.