RRB NTPC CBT-1 previous year question
The present age of a father is thrice that of his son. After 15 years, the age of the father will be twice that of his son. What is the present age ( in years) of the father?
Asked in RRB NTPC 2026 — 17 June Shift 2 · Quantitative Aptitude
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Correct answer: (B) 45
Let son's age = x, father's = 3x. After 15 years: 3x+15 = 2(x+15), giving x = 15. So the father's present age = 3*15 = 45 years.
हिंदी में प्रश्न
एक पिता की वर्तमान आयु उसके पुत्र की आयु की तिगुनी है। 15 वर्ष बाद पिता की आयु उसके पुत्र की आयु को दुगुनी SPM पिता की वर्तमान आयु (वर्ष मै) क्या है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 48 ह UC] , 4
मान लीजिए पुत्र की आयु x और पिता की आयु 3x है। 15 वर्ष बाद: 3x+15 = 2(x+15), जिससे x = 15 मिलता है। अतः पिता की वर्तमान आयु = 3*15 = 45 वर्ष है।
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