RRB Technician Grade 3 previous year question
Five years ago from now, the sum of the ages of John and his sister Jane was 25 years. If John is now twice as old as he was ten years ago, find the difference between their present ages (in years).
Asked in RRB Technician Grade 3 (06 Mar 2026 Shift 3) · Quantitative Aptitude
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Correct answer: (A) 5
Five years ago sum was 25, so present sum = 25+10 = 35. John now = 2×(John 10 yrs ago) ⇒ John = 2(John−10) ⇒ John = 20, so Jane = 35−20 = 15. Difference = 20−15 = 5 years.
हिंदी में प्रश्न
वर्तमान से पांच वर्ष पूर्व, जॉन और उसकी बहन जेन की आयु का योग 25 वर्ष था। यदि जॉन की वर्तमान आयु, उसकी दस वर्ष पूर्व आयु से दोगुनी है, तो उनकी वर्तमान आयु का अंतर (वर्षों में) ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (A) 5
पाँच वर्ष पहले योग 25 था, अतः वर्तमान योग = 25+10 = 35। जॉन अभी = 2×(10 वर्ष पहले जॉन) ⇒ जॉन = 20, जेन = 35−20 = 15। अंतर = 20−15 = 5 वर्ष।
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