A survey of n people in the town of badaville found that 50% of them prefer brand A. another survey of 100 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 no of people surveyed?
a)200 b)150 c)50 d)100

• 50% of n=(50/100)*n=n/2
  55% of(100+n)=55+(11*n)/20
  60% of 100=60
  55+(11*n)/20=n/2+60
  n=100
  Total people surveyed=100(from badaville) +100(from chottaville)
• 9 years agoHelpfull: Yes(22) No(2)
• 200
  let from town1 100 people and 100 from town2
  now, 50% of town1 =50% of 100= 50
  and 60% of town2 = 50% of 100= 60
  total= 50+60=110
  over all percentage of people of brand a=110*100/200= 55%
  hence total people= 100+100= 200
• 9 years agoHelpfull: Yes(5) No(0)
• (60+0.5n)*100/n+100=11
  n=100
  100+100=200
• 9 years agoHelpfull: Yes(3) No(2)
• a.200
  50% of n=n/2
  60% of 100=60
  (55/100)*(n+100)=(n/2)+60
  n=100
  total=100+100=200
• 9 years agoHelpfull: Yes(3) No(1)
• 50/100*n=n/2
  60/100*100=60
  Overall 55/100(100+n)
  Therefore
  n/2+60=55+11n/20
  5=11n/20-n/2
  n=100
  100+100=200(a)
• 9 years agoHelpfull: Yes(1) No(0)
• A survey of n people in the town of badaville found that 50% of them prefer brand A. another survey of 100 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 no of people surveyed?
  a)200 b)150 c)50 d)100
• 9 years agoHelpfull: Yes(1) No(0)
• in badaville n/2 people prefer brand A
  in chottaville 60% i.e. 60 people prefer brand A
  thus in total there is (n+100) people out of wich 55% prefer brand A
  thus soln is n/2 + 60 = (n+100)*0.55
  solving the answer comes to n=100
  therfr total people using brand A is 100 + 100 = 200
• 9 years agoHelpfull: Yes(1) No(0)
• Equation will be-50 of n 60 of 100 55 of 100nas first village have n and second have 100 people so total will be 100nn2605555100nso n100
• 9 years agoHelpfull: Yes(1) No(0)
• answer is 200 people
  
• 9 years agoHelpfull: Yes(0) No(1)
• Will you explain it more clear SREE
• 9 years agoHelpfull: Yes(0) No(1)
• Ans-200
  50% of n=.5n prefer brand A
  60% of 100=60 people prefer brand A
  55% of(n+100)=60+.5n
  .55n+55=60+.5n
  .05n=5
  n=5/.05
  n=100
  total people=100+100=200
• 9 years agoHelpfull: Yes(0) No(0)
• ans 200,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
  
• 9 years agoHelpfull: Yes(0) No(0)
• 45*n/100=45;
  n=100
  so 200
• 9 years agoHelpfull: Yes(0) No(0)
• in badaville n/2 people prefer brand A
  in chottaville 60% i.e. 60 people prefer brand A
  thus in total there is (n+100) people out of wich 55% prefer brand A
  thus soln is n/2 + 60 = (n+100)*0.55
  solving the answer comes to n=100
  therfr total people using brand A is 100 + 100 = 200
  
• 9 years agoHelpfull: Yes(0) No(0)
• n/2+60 = 55/100(100+n)
  50n+6000=5500+55n
  5n = 500
  n =100
  n+100 = 200
  A=200
• 9 years agoHelpfull: Yes(0) No(0)
• take .5n+60=.55(n+100)
  .05n=5
  n=100
  now total=100+100=200
  
  
• 9 years agoHelpfull: Yes(0) No(0)
• 60% of 100=60
  50% 0f x=0.5x
  60+0.5x=0.55(100+x)
  =>x=100
  =>total=x+100=200
• 9 years agoHelpfull: Yes(0) No(0)
• 60+ .50n = .55(100+n)
  after solving above equation we get
  5n=500
  so n = 100
  so total people surveyed = 100 + 100= 200 answer
• 9 years agoHelpfull: Yes(0) No(0)
• use alligation rule
• 9 years agoHelpfull: Yes(0) No(0)
• ans: 0.5 n+ 60= ((n+100)*55)100
  n=100
  total no. of people=100+100=200
• 9 years agoHelpfull: Yes(0) No(0)
• using alligation
  
  50 60
  55
  5 5
  ratio 1:1
  so n=100
  total people=100+100=200
• 6 years agoHelpfull: Yes(0) No(0)