RRB NTPC CBT-1 previous year question
If the difference between the ages of a mother and her daughter is 24 years, and the sum of their ages is 52 years, how old (in years) is the mother?
Asked in RRB NTPC 2026 — 16 June Shift 3 · Quantitative Aptitude
Tap an option to check your answer.
Show answer and explanation
Correct answer: (C) 38
Let mother's age = M, daughter's = D. M-D=24 and M+D=52; adding gives 2M=76, so M=38 years.
हिंदी में प्रश्न
यदि किसी माता और उसकी पुत्री की उम्र के बीच का अंतर 24 वर्ष है, और उनकी उम्र का योग 52 वर्ष है, तो माता की उम्र (वर्षों में) कितनी है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 28
मान लें माँ की आयु = M, पुत्री की = D। M-D=24 और M+D=52; जोड़ने पर 2M=76, अतः M=38 वर्ष है।
More solved Quantitative Aptitude questions
- If the interest on a sum of ₹y at 2% per annum compounded annually for 2 years is ₹404, then the total amount payable at the end of the…
- A hollow spherical shell is made of a metal of density 10 g/cm3. Its internal and external radius are 1 cm and 4 cm, respectively. What is…
- What sum (in ₹) will earn a simple interest of ₹1,320 in 3 years at 16% per year rate of interest?
- Two trains P and Q, measure 200 m and 300 m in length, respectively. The faster train, coming from behind, takes 48 seconds to overtake…
- A hollow cylinder of thickness 1 unit and length 14 units is made with 396 cubic units of metal. Its inner volume is _____ cubic units…
- A cistern is filled by two taps, C and D, in 54 minutes and 81 minutes, respectively. There is also a drain E at the bottom. If all three…