AVG WEIGHT OF 6 PERSONS INCREASED BY 2.5KG WHEN A NEW MAN REPLACES ONE OF THEM WHOSE WEIGHT IS 50KG.THE WEIGHT OF NEW MAN IS

• let avg wt of 6 person be x kg then total wt =6x
  & wt of new man y kg
  A/Q (6x-50)+y=(x+2.5)*6
  => 6x-50+y=6x+15
  => y=65 kg
• 10 years agoHelpfull: Yes(5) No(0)