If 1 liter pool is filled in 1 second, 6000 liters pool will be filled in 6000 seconds. I.e. 6000/60 = 100 minutes =>1 hour 40 minutes..
If a swimming pool is being filled at a rate of 1 liter per second, how long will it take to fill a 6000 liter pool?
It will be 6000 seconds because it will be filled in seconds