SSC GD Constable previous year question
The average age of 59 students of a class is 22 years. If the age of the teacher is also included, the average age of the whole group becomes 23 years. The age (in years) of the teacher is:
Asked in SSC GD Constable 2025: 07 Feb 2025 Shift 1 · Quantitative Aptitude
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Correct answer: (D) 82
Total age of 59 students = 59×22=1298. Total for 60 people = 60×23=1380. Teacher's age = 1380−1298 = 82.
हिंदी में प्रश्न
एक कक्षा के 59 विद्यार्थियों की औसत आयु 22 वर्ष है। यदि शिक्षक की आयु भी शामिल कर ली जाए, तो पूरे समूह की औसत आयु 23 वर्ष हो जाती है। शिक्षक की आयु (वर्षों में) है:
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सही उत्तर: (D) 82
59 विद्यार्थियों की कुल आयु = 59×22=1298। 60 व्यक्तियों का कुल = 60×23=1380। शिक्षक की आयु = 1380−1298 = 82।
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