RRB Technician Grade 3 previous year question
Refer to the following series and answer the question. (All numbers are single-digit numbers only. Counting to be done from left to right.) (Left) 7 2 9 1 3 2 9 4 1 6 8 5 4 3 7 6 4 2 8 1 3 5 (Right) How many such odd digits are there, each of which is immediately preceded by an even digit and immediately followed by an even digit?
Asked in RRB Technician Grade 3 (09 Mar 2026 Shift 3) · Reasoning
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Correct answer: (D) Three
Checking each odd digit for even neighbours on both sides identifies three qualifying digits: 9 (between 2 and 4), 1 (between 4 and 6), and 5 (between 8 and 4).
हिंदी में प्रश्न
निम्नलिखित अंक श्रृंखला का संदर्भ लीजिए और नीचे दिए गए प्रश्न का उत्तर दीजिए। (सभी संख्याएं केवल एकल अंकीय संख्याएं हैं। गणना बाएं से दाएं की जानी चाहिए।) (बाएं) 7 2 9 1 3 2 9 4 1 6 8 5 4 3 7 6 4 2 8 1 3 5 (दाएं) ऐसे कितने विषम अंक हैं, जिनमें से प्रत्येक के ठीक पहले एक सम अंक और उसके ठीक बाद एक सम अंक आता है?
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सही उत्तर: (D) तीन (Three)
प्रत्येक विषम अंक के दोनों ओर सम पड़ोसियों की जाँच करने पर तीन योग्य अंक मिलते हैं: 9 (2 और 4 के बीच), 1 (4 और 6 के बीच), और 5 (8 और 4 के बीच)।
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