SSC GD Constable previous year question
The average weight of Atul, Baban and Rakesh is 46 kg. If the average weight of Atul and Baban is 39 kg and the average weight of Baban and Rakesh is 50 kg, find the weight of Baban (in kg).
Asked in SSC GD Constable 2025: 11 Feb 2025 Shift 3 (Evening) · Quantitative Aptitude
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Correct answer: (A) 40
Total of three = 138; A+B=78, B+R=100, so A+B+R − (A+B) − (B+R) + B... using sum: (A+B)+(B+R) = A+2B+R = 178; total A+B+R=138, so B = 178−138 = 40.
हिंदी में प्रश्न
अतुल, बबन और राकेश का औसत वज़न 46 kg है। यदि अतुल और बबन का औसत वज़न 39 kg है और बबन और राकेश का औसत वज़न 50 kg है, तो बबन का वज़न (kg में) ज्ञात कीजिए।
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सही उत्तर: (A) 40
तीनों का योग = 138; A+B=78, B+R=100; (A+B)+(B+R) = A+2B+R = 178; कुल A+B+R=138, अतः B = 178−138 = 40।
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