निम्नलिखित संख्या शृंखला का संदर्भ लें और प्रश्न का उत्तर दें।

7 2 9 6 3 7 3 9 7 7 3 9 7 3 2 2 1 3 3 9 3 7 3 9 3 9

ऐसे कितने 3 हैं जिनके ठीक पहले 7 और ठीक बाद में 9 है?

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RRB Group D 20 Sept 2022 Shift 1 Official Paper
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  1. दो
  2. चार
  3. पाँच
  4. तीन

Answer (Detailed Solution Below)

Option 4 : तीन
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हमें दी गई शृंखला में (7,3,9) जैसा प्रतीत होने वाला त्रिक ज्ञात करना है:
 

F1 Railway Amit A 19-02-2023 D21

हम देख सकते हैं कि ऐसे 3 त्रिक हैं जहाँ 3 के तुरंत पहले 7 और तुरंत बाद में 9 है।

अतः, सही उत्तर "तीन" है।

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