The average age of 36 students in a class is 14 years. When their teacher's age is included to it, the average increases by one. What is the teacher's age in years?

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Solution

The correct option is D
54

Age of the teacher = (37 $\times 15$ - 36 $\times 14$ ) years = 51 years

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The average age of 36 students in a class is 14 years. When their teacher's age is included to it, the average increases by one. What is the teacher's age in years?

The correct option is D 54 Age of the teacher = (37 ×15 - 36 ×14 ) years = 51 years

The correct option is D
54

Age of the teacher = (37 $\times 15$ - 36 $\times 14$ ) years = 51 years