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## Answer : 1. "38 years"

The average age of a class of 40 students and a teacher reduces by 0.5 years, if we exclude the teacher. If the initial average age is 18 years, then what is the age of the teacher?

5## Q:

The average age of a class of 40 students and a teacher reduces by 0.5 years, if we exclude the teacher. If the initial average age is 18 years, then what is the age of the teacher?

- 138 yearstrue
- 240 yearsfalse
- 339 yearsfalse
- 441 yearsfalse

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