The average age of a committee of eight members is 40 years. A members aged 55 years retired and his place was taken by another member aged 39 years. The average age of the present committee is :

a. 39 years
b. 38 years
c. 36 years
d. 35 years

• total average of comtti=8*40=320
  A members age 55
  he retired =320-55
  this is 7 member committ =265
  place one person his Age =39
  commtti=7+1=8
  =(265+39)/8=38
  new average age =38 years
  
• 8 years agoHelpfull: Yes(0) No(0)
• total avg age 8*40= 320
  now 52 age replaced by 39 , so 320-16= 304 bcz( 55-39-= 16)
  now avg age 304/8 = 38 ans
• 7 years agoHelpfull: Yes(0) No(0)