RRB NTPC CBT-1 previous year question
What should come in place of ‘?’ in the given series? 4 10 18 38 74 ?
Asked in RRB NTPC 2026 — 14 June Shift 3 · Reasoning
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Correct answer: (B) 150
Each term follows a pattern of alternating *2+2 and *2-2: 4*2+2=10, 10*2-2=18, 18*2+2=38, 38*2-2=74, so the next term is 74*2+2 = 150.
हिंदी में प्रश्न
दी गई श्रृंखला में +? के स्थान पर क्या आना चाहिए? 4 10 18 38 74
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 152
प्रत्येक पद बारी-बारी से *2+2 और *2-2 के पैटर्न का अनुसरण करता है: 4*2+2=10, 10*2-2=18, 18*2+2=38, 38*2-2=74, इसलिए अगला पद 74*2+2 = 150 है।
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