the average age of 15 students is 11yr and 3 months which is increased

1.	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
Answer» 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

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

Answer»

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