The average age of 10 boys and the principal is 15 years. When the principal’s age is excluded, the average age decreases by 1 years. What is the age of the principal?

The average age of 24 boys and the teacher is 15 years. When the teacher’s age is excluded, the average decreases by 1. What is the age of the teacher?Options :38 years39 years40 yearsData inadequat

The average age of 30 boys in a class is 15 years. if we include the age of two teachers, the average age increases by 1. Find the sum of ages of the two teachers. (10 Points)55 years58 years62 years64 years

The average age of a class of 15 students is 18 years. The average increases by 2 years, if the age of a teacher is included. What is the age of the teacher?a.55b.35c.45d.50

The average age of a class. Comprising 19 students, is 16 years. If the age of the teacher is added the average age of the class increases by 2 years. What is the age of the teacher?Options5659987565

The average age of 30 students of a class is 12 years. The average age of a group of 5 of the students is 10 years and that of another group of 5 of them is 14 years. What is the average age of the remaining students?