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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?
5Q:
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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Answer : 1. "38 years"
Explanation :
