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Refer to the following number series and answer the question given below (all numbers are single-digit numbers only). Counting should be done from lef
Question

Refer to the following number series and answer the question given below (all numbers are single-digit numbers only). Counting should be done from left to right only.
(Left) 7 5 2 1 1 6 6 9 8 6 1 7 1 1 9 6 7 3 6 9 9 8 1 (Right)
How many odd digits are there, each of which is immediately preceded by an even digit and immediately followed by an odd digit?

A.

Four

B.

Three

C.

Two

D.

One

Correct option is A

Given:
​(Left) 7 5 2 1 1 6 6 9 8 6 1 7 1 1 9 6 7 3 6 9 9 8 1 (Right)
Logic:  Even – Odd – Odd (E–O–O).
Valid patterns:
2 – 1 – 1 
6 – 1 – 7 
6 – 7 – 3 
6 – 9 – 9 
Total such odd digits = 4.
Final Answer:
Four
Final Correct Option:
(A)

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