Mathematics · Averages
The average age of 35 students in a group is 12 years. When the teacher's age is included, the average increases by one. What is the teacher's age?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 139 years
- 245 years
- 348 years✓
- 442 years
Correct answer
48 years
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