With a garden hose that fills at a rate of 1.6 gallons per minute, and a hole that leaks at 0.1 gallons per minute, the net fill rate becomes 1.6-0.1=<<1.6-0.1=1.5>>1.5 gallons per minute.
Therefore, to fill a 60-gallon pool, it will take 60/1.5=<<60/1.5=40>>40 minutes.
#### 40