137. The average age of 9 students and their teacher is 16 year. The a

1.	137. The average age of 9 students and their teacher is 16 year. The averageage of the first four students is 19 years and that of the last five is 10years. The teacher's age is-(a) 36 years (b) 34 years (c) 30 years (d) 28 years Ans.(b)
Answer» then last five is 10 years the teacher's age is 36 the teacher's age is 34

137. The average age of 9 students and their teacher is 16 year. The averageage of the first four students is 19 years and that of the last five is 10years. The teacher's age is-(a) 36 years (b) 34 years (c) 30 years (d) 28 years Ans.(b)

Answer»

then last five is 10 years the teacher's age is 36

the teacher's age is 34