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 3 2 5 1 4 6 8 3 4 9 7 5 4 2 6 1 7 9 (Right). How many such digits are there, each of which is immediately preceded by an even digit and immediately followed by an odd digit?
Asked in RRB Technician Grade 3 (10 Mar 2026 Shift 2) · Reasoning
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Correct answer: (C) Five
Scanning the digit series, a digit that is immediately preceded by an even digit and immediately followed by an odd digit occurs at exactly five positions in the sequence.
हिंदी में प्रश्न
निम्नलिखित श्रृंखला का संदर्भ लें और प्रश्न का उत्तर दें। (सभी संख्याएं केवल एकल-अंकीय संख्याएं हैं। गिनती बाएं से दाएं की जानी है।) (बाएं) 7 3 2 5 1 4 6 8 3 4 9 7 5 4 2 6 1 7 9 (दाएं)। ऐसे कितने अंक हैं, जिनमें से प्रत्येक के ठीक पहले एक सम अंक है और उसके ठीक बाद एक विषम अंक है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) पाँच
अंक श्रृंखला को देखने पर, ऐसा अंक जिसके ठीक पहले सम अंक हो और ठीक बाद विषम अंक हो, श्रृंखला में ठीक पांच स्थानों पर आता है।
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