entry fee is Re.1.there are 3 rides each is of Re.1. total boys entering are 3000.total income is Rs.7200. 800 students do all 3 rides. 1400 go for atleast 2 rides.none go the same ride twice. then no of students who do not go any ride is?

• total money he got from rides=7200-3000=4200
  3 rides-800 students-2400
  remaining=4200-2400=1800
  only 2rides=1400-800=600
  600*2=1200
  remaining=1800-1200=600
  600 students will go for only single ride=600
  students who do not go for any ride=3000-2000=1000
  
  
• 10 years agoHelpfull: Yes(17) No(4)
• ans-1000.
  entry fee of 3000 students=3000
  then 800 go for 3 ride=800*3=2400
  out of 1400 600 go for exactly two ride=600*2=1200
  then 600 go for exactly one ride=600
  total no. of student who go to ride=800+600+600=2000
  so do not go any ride=3000-2000=1000
• 10 years agoHelpfull: Yes(8) No(0)
• total income = Rs.7200-(entry fee rs.3000)= rs.4200 came from rides.
  now 1400-800=600 went for only two rides. income from these students is 600*2=rs.1200
  income from 800 student = 800*3= rs.2400.
  income from only one rides=4200-(2400+1200)=rs.600
  therefore 600(student who went only in one ride)+ 1400( who went for atleast 2 rides)= 2000 students...
  ans.=1000.
• 10 years agoHelpfull: Yes(2) No(0)
• income from entry fee=3000,
  800 boys do all 3 rides, so total income from this=800*3=2400,
  and 1400 go for atleast 2 rides means 600(=1400-800) do 2 rides. so the income from this=600*2=1200,
  now, total income is 7200. from this we can say that 600(=7200-3000-2400-1200)boys do only 1 ride.
  so, the no.of boys who do not go for any ride=(3000-800-600-600)=1000 boys
• 10 years agoHelpfull: Yes(2) No(0)
• 200 students do not go any ride
  
• 9 years agoHelpfull: Yes(0) No(1)