RRB NTPC CBT-1 previous year question
What should come in place of ‘?’ in the given series? 372 321 277 240 210 187 ?
Asked in RRB NTPC 2026 — 17 June Shift 1 · Reasoning
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Correct answer: (B) 171
The differences between consecutive terms are 51,44,37,30,23, decreasing by 7 each time, so the next difference is 16, giving 187-16 = 171.
हिंदी में प्रश्न
दी गई श्रृंखला में '?' के स्थान पर क्या आना चाहिए? 372 321 277 240 210 187 ?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 171 / a =—s
क्रमागत पदों के बीच अंतर 51,44,37,30,23 हैं, जो हर बार 7 घटते हैं, अतः अगला अंतर 16 है, जिससे 187-16 = 171 मिलता है।
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