The average age of 9 students and their teacher is 16 years. The average age of the firstfour students is 19 years and that of the last five is 10 years. The teacher's age is -

The average age of 9 students and their teacher is 16 years. The avera

1.	The average age of 9 students and their teacher is 16 years. The average age of the firstfour students is 19 years and that of the last five is 10 years. The teacher's age is -
A.	6 years
B.	4 years
C.	0 years
D.	8 years
Answer» C. 0 years

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The average age of 9 students and their teacher is 16 years. The average age of the firstfour students is 19 years and that of the last five is 10 years. The teacher's age is -

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