RRB NTPC CBT-1 previous year question
The largest four-digit number which when divided by 11, 7 and 14 leaves the remainder 2 in each case, is:
Asked in RRB NTPC 2026 — 15 June Shift 2 · Quantitative Aptitude
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Correct answer: (C) 9858
LCM(11,7,14)=154. We need the largest 4-digit number ≡2 (mod 154). Since 154×64=9856, the required number is 9856+2=9858.
हिंदी में प्रश्न
चार अंकों की वह सबसे बड़ी संख्या ज्ञात कीजिए जिसे 11, 7 और 14 से विभाजित किए जाने पर प्रत्येक स्थिति में शैषफल 2 प्राप्त हो।
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उत्तर और व्याख्या देखें
सही उत्तर: (C) 9972
LCM(11,7,14)=154 है। हमें सबसे बड़ी 4-अंकीय संख्या चाहिए जो 154 से भाग देने पर शेष 2 दे। चूँकि 154×64=9856, अभीष्ट संख्या 9856+2=9858 है।
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