Question

How old is the teacher?
1. The average age of ten students and their teacher is 25 yrs.
II. The teacher's age is 10 yrs more than the oldest student's age.​

Answer 1

Answer:

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Answer 2

Answer : -

35 years

Given ,

• The average age of ten students and their teacher is 25 yrs.

• The teacher's age is 10 yrs more than the oldest student's age.

Solution :

24 students age on average is 10.

The total age of the 24 students is therefore 24 x 10 = 240 years.

The 24 students and 1 teacher had an average age of 11 years.

The cumulative age of 25 people is therefore 25 x 11 or 275 years.

As a result, the teacher is 35 years old (275 – 240).

Hence ,

The age of the teacher is : 35 years

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