RRB NTPC CBT-1 previous year question
What should come in place of ‘?’ in the given series? 280 225 175 130 90 55 ?
Asked in RRB NTPC 2026 — 18 June Shift 2 · Reasoning
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Correct answer: (D) 25
The differences between consecutive terms are -55, -50, -45, -40, -35, decreasing in magnitude by 5 each time, so the next difference is -30, giving 55 - 30 = 25.
हिंदी में प्रश्न
दी गई श्रृंखला में +? के स्थान पर क्या आना चाहिए? 280 225 175 130 90 55 ?
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सही उत्तर: (D) 34
क्रमागत पदों के बीच अंतर -55, -50, -45, -40, -35 है, जो हर बार परिमाण में 5 से घटता है, इसलिए अगला अंतर -30 होगा, जिससे 55 - 30 = 25 प्राप्त होता है।
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