दिए गए प्रश्न पर विचार कीजिए और निर्णय लीजिए कि निम्नलिखित में से कौन-सा/से कथन प्रश्न का उत्तर देने के लिए पर्याप्त है/हैं।

क्या (X – 5) सम है? X एक वास्तविक संख्या है।

कथन:

X – 15 पूर्णांक से संबंधित है।
X – 10 एक विषम पूर्णांक है।

This question was previously asked in
RRB ALP Previous Paper 1 (Held On: 9 Aug 2018 Shift 1)
View all RRB ALP Papers >
  1. कथन 1 और 2 दोनों पर्याप्त हैं।
  2. केवल कथन 2 पर्याप्त है जबकि केवल कथन 1 अपर्याप्त है
  3. न तो कथन 1 और न ही 2 पर्याप्त है
  4. केवल कथन 1 पर्याप्त है जबकि केवल कथन 2 अपर्याप्त है

Answer (Detailed Solution Below)

Option 2 : केवल कथन 2 पर्याप्त है जबकि केवल कथन 1 अपर्याप्त है
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Detailed Solution

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कथन 1:

X – 15 = पूर्णांक

⇒ X भी पूर्णांक है।

कथन 2:

X – 10 = विषम पूर्णांक

⇒ X एक विषम पूर्णांक है।

⇒ (X – 5) सम है।

∴ केवल कथन 2 पर्याप्त है जबकि केवल कथन 1 अपर्याप्त है।
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