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Refer to the given number and symbol series and answer the question that follows. Counting to be done from left to right only.
How many such symbols are there, each of which is immediately preceded by a number and also immediately followed by another number?
4
1
2
3
2
Scan the series for 'Number-Symbol-Number' triplets. Count exactly those occurrences where a symbol sits between two numbers.
Scan the series for 'Number-Symbol-Number' triplets. Count exactly those occurrences where a symbol sits between two numbers.
Analyze the series
The given series is: 6, @, $, 7, &, 9, #, 1, *, ┬г, 5, 3, 2, +, %, 8, 4, ╬й.
Identify pattern 'Number - Symbol - Number'
We check each symbol in the series to see if it is flanked by numbers on both immediate sides: 1) 9 # 1 (9 is a number, # is a symbol, 1 is a number). This is a valid match. 2) Others like @, $, &, *, ┬г, +, %, ╬й do not have numbers on both sides.
Counting
Scanning from left to right, only the sequence '9 # 1' satisfies the condition 'Symbol preceded by a number and followed by a number'. Thus, the count is 1.
A: 0 is wrong, there is one match. B: 2 is wrong, only '9 # 1' qualifies. D: 3 is wrong, no other symbol matches the criteria.
C is correct because '9 # 1' is the only triplet in the sequence that contains a symbol preceded by a number and followed by a number.
In alphanumeric series, always break the sequence into triplets (e.g., Num-Sym-Num) to ensure no pattern is overlooked.
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