Study the following arrangement carefully and answer the question.
1 9 2 6 5 9 3 8 3 9 3 2 5 9 2 9 3 4 8 2 6 9 8
How many 9s are there in the series, each of which is not immediately preceded by 5 but is immediately followed by either 2 or 3?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Three
Check every 9 in the series: the digit before it must not be 5, and the digit after it must be 2 or 3.
Place 2: 1 9 2 — counts
Place 6: 5 9 3 — does not count (preceded by 5)
Place 10: 3 9 3 — counts
Place 14: 5 9 2 — does not count (preceded by 5)
Place 16: 2 9 3 — counts
Place 22: 6 9 8 — does not count (followed by 8)
Three of the 9s meet both conditions, so the answer is three.