Practice30Create account

The average weight of 35 students is 42 kg. When the teacher's weight is included, the average increases by 0.5 kg. What is the teacher's weight (in kg)?

Competition practiceAverages & Ages
  • A60
  • B42.5
  • C59.5
  • D61

Step-by-Step Solution

New total = kg; old total = kg. Teacher's weight = 60 kg.
Answer: A) 60

Master this topic in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Averages & Ages practice questions

More Averages & Ages practice

The average of 5 numbers is 40. When one number is removed, the average of the remaining…The average weight of 5 boxes on a truck is 42 kg. When one more box is loaded, the…The sum of the present ages of A and B is 40 years. Five years ago, A was twice as old…A is 5 years older than B. Three years from now, the sum of their ages will be 41 years.…In a family of 4, the mean age is 30 years. When the grandmother comes to live with…