Question

the average age of 15 students is 11 years 3 months which increased by 1 year and 1(1/2) month when the age of teacher is included, find the age of teacher in years and months? ​

Answer 1

Answer:

18 years 2months and 3 days

Step-by-step explanation:

11 y 3 months = 135

135=x/15

x=2025 total age of students

average increased by 1 year 1(1/2)month =148months

148=2025+teachers age (x)/16

x=351 months

teacher=18 years 2months 3days