DSSSB · Mathematics

Two pipes can fill a tank in 12 and 18 minutes respectively, and pipe C can empty the tank at 4 gallons per minute. If all three pipes are opened together the tank can be filled in 8 minutes. Find the capacity of the tank.

  1. 288 gallons
  2. 268 gallons
  3. 258 gallons
  4. 208 gallons
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