GIVEN:The AVERAGE age of 30 STUDENTS = 15 yearsAverage age INCREASES by 1 year If the age of the teacher is also included.Concept:Total age = Average × total numberCalculation:Total age of 30 students = 30 × 15 = 450 yearsNew average after addition of teacher = 15 + 1 = 16 yearsTotal number = 30 + 1 = 31Total age of 31 people = 31 × 16 = 496 years∴ Age of teacher = Total age of 31 people - Total age of 30 students = 496 - 450 = 46 yearsAge of teacher = Average age + number of members including the teacher × increment in average age⇒ Age of teacher = 15 + 1 × 31 = 46 years "> GIVEN:The AVERAGE age of 30 STUDENTS = 15 yearsAverage age INCREASES by 1 year If the age of the teacher is also included.Concept:Total age = Average × total numberCalculation:Total age of 30 students = 30 × 15 = 450 yearsNew average after addition of teacher = 15 + 1 = 16 yearsTotal number = 30 + 1 = 31Total age of 31 people = 31 × 16 = 496 years∴ Age of teacher = Total age of 31 people - Total age of 30 students = 496 - 450 = 46 yearsAge of teacher = Average age + number of members including the teacher × increment in average age⇒ Age of teacher = 15 + 1 × 31 = 46 years ">

The average age of 30 students in a class is 15 years. If the teacher's age is also included then the average age increases by 1 year. The age of the teacher is?

General Knowledge General Awareness in General Knowledge 10 months ago

  3   0   0   0   0 tuteeHUB earn credit +10 pts

5 Star Rating 1 Rating
GIVEN:The AVERAGE age of 30 STUDENTS = 15 yearsAverage age INCREASES by 1 year If the age of the teacher is also included.Concept:Total age = Average × total numberCalculation:Total age of 30 students = 30 × 15 = 450 yearsNew average after addition of teacher = 15 + 1 = 16 yearsTotal number = 30 + 1 = 31Total age of 31 people = 31 × 16 = 496 years∴ Age of teacher = Total age of 31 people - Total age of 30 students = 496 - 450 = 46 yearsAge of teacher = Average age + number of members including the teacher × increment in average age⇒ Age of teacher = 15 + 1 × 31 = 46 years

Posted on 03 Dec 2024, this text provides information on General Knowledge related to General Awareness in General Knowledge. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

Take Quiz To Earn Credits!

Turn Your Knowledge into Earnings.

tuteehub_quiz

Tuteehub forum answer Answers

Post Answer

No matter what stage you're at in your education or career, TuteeHub will help you reach the next level that you're aiming for. Simply,Choose a subject/topic and get started in self-paced practice sessions to improve your knowledge and scores.