RRB Group D previous year question
Ten years ago, a father was three times as old as his son. Ten years from now, he will be twice as old as his son. What is the son's present age?
Asked in RRB Group D CBT-1: 09 Jan 2026 Shift 1 · Quantitative Aptitude
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Correct answer: (B) 30 years
f−10=3(s−10), f+10=2(s+10) → f=2s+10, substitute: 2s+10−10=3s−30 → s=30.
हिंदी में प्रश्न
दस वर्ष पहले, पिता की आयु उसके पुत्र की आयु की तीन गुनी थी। अब से दस वर्ष बाद, उसकी आयु उसके पुत्र से दोगुनी होगी। पुत्र की वर्तमान आयु कितनी है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 30 वर्ष
सही उत्तर: विकल्प B (30 वर्ष)
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