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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 numbers are there, each of which is immediately preceded by a symbol and also immediately followed by another symbol?
1
2
0
4
4
Scan for numbers in the sequence and check the immediate left and right neighbors to see if both are symbols.
Scan for numbers in the sequence and check the immediate left and right neighbors to see if both are symbols.
Analyze the pattern
We need to find numbers that are preceded by a symbol
. The sequence is: 5, 3, @, #, 1, &, 9, +, ╬й, 6, ┬г, *, $, 2, %, 8, 4, 7.
Identify matches
Looking through the series: '# 1 &' (1 is between # and &), '+ 9 ╬й' (9 is between + and ╬й), '┬г 6 *' (6 is between ┬г and *), '2%тА▓(2isbetween and %).
Verification
The digits 5, 3, 8, 4, 7 do not satisfy the condition as they are either next to other numbers or not flanked by symbols on both sides. Thus, there are 4 such numbers.
A: 2 is incorrect. B: 3 is incorrect. C: 5 is incorrect. The count is precisely 4.
D is correct because there are exactly 4 numbers (1, 9, 6, 2) that fulfill the condition of being surrounded by symbols on both sides.
In alphanumeric series questions, always mark the target category (e.g., numbers) first and then check the immediate neighbors to save time.
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