Given: In a cricket team, the average age of 11 players is 22 years. When the age of team coach is included to it, the average age increases by 1. Formula Used: average = sum of observations/number of observations Calculation: ⇒ Average age of 11 players = 22 years ⇒ Total age of 11 players =22×11=242 years Let age of coach = x years According to ques, ⇒242+x/12=23⇒242+x=23×12=276⇒x=276−242=34 years