Multiple choice

The average age of 14 girls and their teacher’s age is 16 years. If the teacher’s age is excluded the average reduces by 1. What is the teacher’s age? 14 लड़कियों और उनके शिक्षक की औसत आयु 16 वर्ष है। यदि शिक्षक की आयु को हटा दिया जाए तो औसत 2 कम हो जाता है। शिक्षक की आयु क्या है?

  1. 35 years 35 वर्ष

  2. 32 years 32 वर्ष

  3. 30 years 30 वर्ष

  4. 29 years 29 वर्ष

  5. 44 years 44 वर्ष
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Total age of 15 people = 15 × 16 = 240 years. Without teacher, average = 15, so 14 girls' total age = 14 × 15 = 210 years. Teacher's age = 240 - 210 = 30 years. Option C is correct.

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