A survey of n people in the town of badaville found that 50% of them prefer brand A.anaother 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?

• .5*n+.6*100=.55*(n+100)
  n=100
  total people surveyed=n+100
  =100+100
  =200
• 10 years agoHelpfull: Yes(51) No(1)
• assume no.of people in badaville be x.... so its 50/100 of x---->prefer brand A
  and no.of people in chota ville is 100 (as its given) ...so 60/100 of 100--->60 prefer brand A
  now it is 50x/100+60=55(x+100)/100...on solving its 200
• 10 years agoHelpfull: Yes(12) No(0)
• (50%*n)+(60%*100)=55%(n+100)
  0.5n+60=0.55n+55
  0.55n-0.5n=60-55
  0.05n=5
  n=5/0.05=100
  n=100
  total no. of people surveyed=n+100
  =100+100
  =200
• 8 years agoHelpfull: Yes(9) No(0)
• consider n as 100 then u'i get no of people prefer Brand A as 110 and 90
  from dis 110 is 55% of whole..
  200 ans..
• 10 years agoHelpfull: Yes(4) No(0)
• by using the cross rule,ratio of 1st survay to 2nd survay comes out to be =(60-55):(55-50)=1:1.
  so as 100 people are considered in second survey,value of n=100
• 10 years agoHelpfull: Yes(2) No(1)
• 200 ..........................................
• 10 years agoHelpfull: Yes(1) No(2)
• 1st town=n/2 prefer brand A
  2nd town=100*60/100=60 prefer brand A
  total,
  (n+100)*55/100=n/2+60
  =>.55n+55=.5n+60
  =>.05n=5
  =>n=100
  total=n+100=100+100
  =200 number of people surveyed
• 10 years agoHelpfull: Yes(1) No(1)
• n*50/100+60=55/100(n+100)
  ans=200
• 8 years agoHelpfull: Yes(1) No(0)
• this question can be solved by using alligation method :--
  
  50 60
  55
  5 5
  
  this means people in both the town is in the ratio of 1:1
  
  therefore, 100+100=200
• 8 years agoHelpfull: Yes(1) No(0)
• Ans is 1090
• 6 years agoHelpfull: Yes(1) No(0)
• i think it might be 200 people
• 10 years agoHelpfull: Yes(0) No(0)
• 100 people......
• 10 years agoHelpfull: Yes(0) No(3)
• Solution Total
  200 people surveyed
• 8 years agoHelpfull: Yes(0) No(0)
• 200 people survyed
  
• 8 years agoHelpfull: Yes(0) No(0)
• 50%(n)+60%(100)=55%(n+100)
  
  By solving it we get n=200
• 7 years agoHelpfull: Yes(0) No(0)
• 50% (n) + 60% (100 ) = 55% (n + 100)
  Solving we get n = 100
• 5 years agoHelpfull: Yes(0) No(0)