A survey of n people in the town of badaville found that 50% of them prefer brand A. another survey of a100 people in the town of chottaville found that 60% prefer brand A .In total 55% of all the people surveyed together prefer Brand A. What is the total number of people surveyed?

• n/2 prefer brand A in first survey
  in 2nd survey 60 people prefer brand A
  so,
  (n+100)*55/100= n/2+60
  n=100
  total no of people surved=100=+100=200
• 9 years agoHelpfull: Yes(10) No(0)
• badaville 50 % so n/2 prefer brand A
  chotaville 60% so 60 people prefer brand A
  
  total people is n+100
  so
  55/100(n+100)=n/2+60
  on solving we get n=100
  thererfore
  
  people surveyed is 50+60=110
  
  Ans:110
• 9 years agoHelpfull: Yes(0) No(3)