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নিম্নলিখিত সংখ্যা, প্রতীক ক্রম উল্লেখ করুন এবং প্রশ্নের উত্তর দিন। গণনা শুধুমাত্র বাম থেকে ডানে করতে হবে। সমস্ত সংখ্যা একক-অঙ্কের সংখ্যা।
(বাম) 4 3 1 2 $9 & 2? 4 @ 1 9 * 3 7 3 @ & < % (ডান)
এমন কতগুলি প্রতীক আছে যার প্রত্যেকটির ঠিক আগে একটি অন্য প্রতীক আছে এবং ঠিক পরে একটি সংখ্যা আছে?
কোনোটি নয়
দুটি
একটি
তিনটি
কোনোটি নয়
Scan the series for 'Symbol-Symbol-Number' triplets. A symbol must be preceded by a symbol AND followed by a number.
Scan the series for 'Symbol-Symbol-Number' triplets. A symbol must be preceded by a symbol AND followed by a number.
Analyze the pattern
The requirement is a triplet: Symbol (S) followed by another Symbol (S) followed by a Number (N). Sequence: S → S → N.
Mapping the sequence
Series: 4, 3, 1, 2, , 9, &, 2,?, 4, @, 1, 9, *, 3, 7, 3, @, &, <, \%. \text{Symbols present}: , &,?, @, *, @, &, <, %.
Verification of triplets
Scanning symbols: '$' is followed by '9'(N), '&' is followed by '2'(N), '?' is followed by '4'(N), '@' is followed by '1'(N), '*' is followed by '3'(N), '@' is followed by '&'(S), '&' is followed by '<'(S). No instance exists where a symbol is immediately followed by another symbol AND that second symbol is followed by a number.
B: Incorrect, no such pattern exists. C: Incorrect, the count is zero. D: Incorrect, the count is zero.
A is correct because there are no instances in the series where a symbol is immediately preceded by another symbol and simultaneously followed by a number.
In alphanumeric series, always write the criteria (S-S-N) and use a pencil to underline matches to avoid missing elements or miscounting.