rain water on the top of roof is collected in a tank.25 mm of rain results in 5000 lit of water in a tank.what is the area of the roof if 80% of the water is collected in a tank.

am not getting it completely please if anyone solved this que help me with this one.

• Water int the tank is 80% of rain water so 80% =5000
  So 100% means total water on the roof collected so 100%= (5000/80)*!00 =6250 litr
  now volume = Are of roof * hieght
  6250=X*.25(mm) Where X is the Area of roof
  [ as we know 1 m=1000 mm so .25mm is=0.00025 m]
  so volume
  6250=X*0.00025
  => X=25000000
  
• 8 years agoHelpfull: Yes(14) No(0)
• 1 litre= 10^6 cubic mm
  let area be x,then
  25*X=5000*10^6
  x=(2*10^8) mm^2
  which is 80%of the total area
  thus total area = 2.5*10^8
  
• 8 years agoHelpfull: Yes(3) No(1)
• 2^x/(1+2^x) = 1/4 so 8^x/(1+8^x) = ?
• 9 years agoHelpfull: Yes(0) No(4)
• area*h=5000
  area=5000/25 = 200mm^2
• 9 years agoHelpfull: Yes(0) No(3)
• 80% of 5000 = 4000 lt
  4000 lt = 4 klt
  .25mm = 25 /100000 m
  volume= area * height
  4 = area * 25/100000
  arae = 16000 m^2
  
• 8 years agoHelpfull: Yes(0) No(2)