Math, asked by kumarnaman0906, 18 days ago

the average age of 15 students is 11yr and 3 months which is increased by 1 year and 3/2 months when the age of teacher is included find the age of teacher in years and months

Answers

Answered by kkodandaramchippada

3

Step-by-step explanation:

so from the Q the total sum of age of 15 students is 135×15 months

let the age of teacher is X months , then the new sum is 2025 + X months

& is equal to 16 × 148.5 which is equal to 2376 on equating these two , X will be 351 which means the age of the teacher is 29years 3months

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