Mathematics · Averages
The average age of 28 boys in a class was 14 years. If the average age increases by 1.5 years when the class teacher is included, what is the age of the class teacher?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 157.5 years✓
- 256 years
- 359.5 years
- 460 years
Correct answer
57.5 years
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