RRB NTPC CBT-1 previous year question
The sum of the ages of two siblings is 28 years and the difference of their ages is 8 years. What is the present age of the elder sibling?
Asked in RRB NTPC 2026 — 14 June Shift 3 · Quantitative Aptitude
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Correct answer: (C) 18 years
If the elder sibling's age is e and the younger's is y, e+y=28 and e-y=8; adding the equations gives 2e=36, so e=18 years.
हिंदी में प्रश्न
दो सहोदर की आयु का योगफल 28 वर्ष है और उनकी आयु का अंतर 8 वर्ष है। बड़े सहोदर की वर्तमान आयु क्या है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 16 वर्ष
यदि बड़े भाई-बहन की आयु e और छोटे की y है, तो e+y=28 और e-y=8; समीकरणों को जोड़ने पर 2e=36, अतः e=18 वर्ष प्राप्त होता है।
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