SSC GD Constable previous year question
The average age of 54 students of a class is 37 years. If the age of the teacher is also included, the average age of the whole group becomes 38 years. The age (in years) of the teacher is:
Asked in SSC GD Constable 2025: 04 Feb 2025 Shift 3 · Quantitative Aptitude
Tap an option to check your answer.
Show answer and explanation
Correct answer: (A) 92
Total age of students = 54×37=1998; total with teacher = 55×38=2090; teacher's age = 2090−1998 = 92.
हिंदी में प्रश्न
किसी कक्षा के 54 विद्यार्थियों की औसत आयु 37 वर्ष है। यदि शिक्षक की आयु को भी शामिल कर लिया जाए, तो पूरे समूह की औसत आयु 38 वर्ष हो जाती है। शिक्षक की आयु (वर्षों में) है:
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (A) 92
विद्यार्थियों की कुल आयु = 54×37=1998; शिक्षक सहित कुल = 55×38=2090; शिक्षक की आयु = 2090−1998 = 92।
More solved Quantitative Aptitude questions
- The LCM of 56, 30, 108 and 120 is:
- The ratio between two numbers is 19 : 24. If each number is reduced by 36, the ratio becomes 3 : 4. Find the sum of the numbers.
- The average score of 7 players was initially recorded as 55. However, it was later discovered that a score of 35 had been mistakenly read…
- Vijay has ₹1224 with him. He divided it amongst his sons Ajay and Prakash and asked them to invest it at 4% rate of interest compounded…
- The simple interest on a principal amount (in ₹) is ₹318 for a period of 2 years at the rate of 6% per annum. The principal amount (in ₹)…
- 400 apples were bought at ₹1200 per hundred and were sold at a profit of ₹800. Find the selling price (in ₹) per dozen of apples.