Question

Average age of a class of 33 students is 12

Q: Answer-Average age of a class of 33 students is 12 years. Average age of the class is increased by 18 month...

Sum of the ages of all the students in the class 33 times 12 396 years Sum of the ages of the students along with teacher 34 times 13.5 459 years So the age of the teacher 459 ndash 396 63 years

years. Average age of the class is increased by 18 months if the age of the teacher is included. Find the age of the teacher.

A 63 years

B 61 years

C 58 years

D 78 years

E None of these

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Average age of a class of 33 students is 12

Solution