Math, asked by minijao72, 2 months ago

3. The average age of a child in a class of 35 students is 11 the average age including the teacher is 12.How old is the teacher?
a) 47 b)46 c)48

Answers

Answered by jaihojanta

1

Answer:

total child age sum = 11×35 = 385

total child and teacher age sum = 12×36 = 432

teacher's age = 432-385 = 47

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