In a hostel there are 800 boys .They have food reserves for 50 days .Some boys among them left on leave .Now they can utilize their food reserves for 70 days . How many boys left on leave(approx) ?

• here from question we are seeing that 800 boys reserves food for 50 days.
  so, total amount of food:- 800*50=40000
  
  Now suppose x no. of people utilise their food for 70 days.
  so, 70*x
  but total amount of food=40000
  thus,70*x=40000
  so,x=571(taking approx)
  thus,no. of people left=800-571=229
• 9 years agoHelpfull: Yes(11) No(0)
• 800*50=70*(800-x) [ since a certain number of boys left ]
  56000-70x=40000
  x=16000/70
  x=228.5 ~= 229 boys.
• 9 years agoHelpfull: Yes(4) No(0)
• i think the answer is 228
• 9 years agoHelpfull: Yes(3) No(1)
• 800 50
  800-x 70
  56000=40000-50x
  x=320
• 9 years agoHelpfull: Yes(1) No(3)
• 800*50/70=571
  800-571=229~230
• 9 years agoHelpfull: Yes(0) No(1)
• total boy days=800*50=40000
  after leaving
  total=(800-x)*70
  Now
  (800-x)*70=800*50
  solving
  x=20
  20 boys left on leave
• 8 years agoHelpfull: Yes(0) No(0)
• 50 days---800 boys
  
  1d---800/50 boy
  
  70 days-----(800*50)/70 =1120 boys
  
  1120-800=320
• 8 years agoHelpfull: Yes(0) No(1)
• Approximately 229
  800*50=40000
  X*70=40000
  571*70=39970
  So 800-571~229
• 7 years agoHelpfull: Yes(0) No(0)