Question

thera are 8 teachers ina school.when a 35 year old teacher was transferred and another teacher joined , the average age was increased by 2 years.how old the new teacher ?

Answer 1

There are 8 teachers.

Let the total age be A.

Then avg age = A/8.

the average age was increased by 2 years means whosoever has come is of greater age than who has left.

New average = A/8 + 2

Increment in total age = 8 x 2 = 16.

New teacher's age = 35 + 16 = 51.

Answer 2

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