average age of 22 students is 21 years if avreage is increased by 1 then teacher included what is the age of teacher

• total age of students = 22 x 21 = 462
  if teacher is included no of persons will be 23 avg will be 22 yrs
  total age (if teacher included) = 23 x 22 = 506
  Age of teacher = 506 - 462 = 44
• 7 years agoHelpfull: Yes(4) No(0)
• Answer: 44
• 8 years agoHelpfull: Yes(3) No(0)
• 44 years
  
  If teacher' age=x, then (22*21+ x) /23 =22 ,x=22*23 - 22*21=44
• 8 years agoHelpfull: Yes(1) No(0)
• By formula,
  New age=previous average+(increase in average * no of persons)
  New age= 21+(1*23)= 44
• 4 years agoHelpfull: Yes(0) No(0)