Mathematics · Averages
The average age of 30 students in a class is 13 years. When the teacher's age is included, the average age increases by 1 year. What is the teacher's age?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 144 years✓
- 243 years
- 340 years
- 442 years
Correct answer
44 years
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