SSC GD Constable previous year question
The average age of 48 students in a class is 22 years. If the teacher's age is also included, the average age of the entire group becomes 23 years. Find the teacher's age (in years).
Asked in SSC GD Constable 2025: 04 Feb 2025 Shift 2 (Afternoon) · Quantitative Aptitude
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Correct answer: (C) 71
Total age of 48 students = 48×22 = 1056. Total for 49 people = 49×23 = 1127. Teacher's age = 1127 − 1056 = 71 years.
हिंदी में प्रश्न
एक कक्षा के 48 विद्यार्थियों की औसत आयु 22 वर्ष है। यदि शिक्षक की आयु भी सम्मिलित कर ली जाए, तो संपूर्ण समूह की औसत आयु 23 वर्ष हो जाती है। शिक्षक की आयु (वर्ष में) ज्ञात कीजिए।
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सही उत्तर: (C) 71
48 विद्यार्थियों की कुल आयु = 48×22 = 1056। 49 लोगों का कुल = 49×23 = 1127। शिक्षक की आयु = 1127 - 1056 = 71 वर्ष।
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