0.8 portion of a tank is filled with water. If 25 litres of water is taken out from the tank, 14 litres of excess water over the half filled up tank remains in it. Find the capacity of the tank.

• 130 liters
  If capacity of the tank is 'x' liters, then 0.8x-25= 0.5x+14, x=39/0.3=130
• 10 years agoHelpfull: Yes(9) No(0)
• totally 0.8 portion filled by water
  remaining 0.2 is empty (not to bother)
  the trick is in "14 litres of excess water over the half filled up tank remains it".
  so full tank is 1.0 portion half is 0.5
  however they taken 25 litres water and 14 litres remaining from half...
  so, for 0.3 portion 39 litres
  for 0.1 portion 13 litres..
  as well as
  1.0 (full tank) portion 130 litres
  thats it..
  
• 8 years agoHelpfull: Yes(3) No(0)
• consider 80% of tank is filled.......50% is half of tank
  if 25l is taken out then 14l remains above the half filled tank(50%)
  that means in between 80% and 50% 0f tank there was total of 25+14=39l of water
  therefore
  if 30%of tank = 39l
  then 100%of tank= ?
  ans is 130 l
• 7 years agoHelpfull: Yes(0) No(0)