if 40 people eat in 40 days,30 people in 60 days,then 20 people eat in how many days?

• 40 people=40 days
  40-10 i.e 30 people=40+20=60 days
  30-10 i.e 20 people=60+20=80 days
  Ans:80 days
• 12 years agoHelpfull: Yes(97) No(11)
• 40 people takes 4O days and 30 people takes 60 days to eat
  then it s obvious to say that if 10 more people is reduced then 20 people will take 80 days to eat.
• 12 years agoHelpfull: Yes(13) No(1)
• if 4o people eat in 40 days so total work =40*40=1600
  if 30 people eat in 60 days so total work =30*60=1800
  so next total work may be 2000 so for 20 people it need 100 days...?
  
  is it wrong...?
• 12 years agoHelpfull: Yes(7) No(19)
• Pls check if question is correct.
  
  Is there any addition is stock on daily basis ?
• 12 years agoHelpfull: Yes(5) No(7)
• people will eat in 60 days
• 10 years agoHelpfull: Yes(1) No(1)
• I think 60 Days if it is wrong plz correct thz
• 9 years agoHelpfull: Yes(1) No(1)
• let say d=day p=person
  40p=40d(100 % )
  30p=60d(50% days increses )
  so 25 decresing in p change 50% incresing the d(in %)30p=60d(40+20)
  so 50 decresing in p change 100% incresing the d(in %)20=80d(40+40)
  so ans is 80
  20p=80d
• 9 years agoHelpfull: Yes(1) No(0)
• 80.........bocuse 40p=40day
  
• 12 years agoHelpfull: Yes(0) No(8)
• 40people in 40days
  30people in 60days(40+20)
  Therefore,20people in 80days(60+20)
• 9 years agoHelpfull: Yes(0) No(0)
• ans:80days
• 8 years agoHelpfull: Yes(0) No(0)
• The age of the two friends were in the ration of 6:5. If the sum of their ages is 55. Then after how many years their ratio will become 8:7?
  solution- A:B=6:5
  11part =55
  thn 1 part =5
  thn 6part=30 nd 5prt=25
  let we 30+x/25+x=8/7
  after croos multiplication , 210+7x=8x+200
  thn x=10.
• 8 years agoHelpfull: Yes(0) No(0)