Q162
ReasoningSeating Arrangement, Ranking & Puzzles
How many 3s are there in the following sequence which are neither preceded by 6 nor immediately followed by 9? 9 3 6 6 3 9 5 9 3 7 8 9 1 6 3 9 6 3 9
- a.One
- b.Two
- c.Three
- d.Four
Answer: (B) Two
Checking each occurrence of the digit 3 in the sequence against the two exclusion conditions (immediately preceded by 6, or immediately followed by 9) shows that exactly two of the 3s satisfy neither condition and so qualify.