If a lake is 60 miles away and im driving 40 mph the entire way how long will it take me to get to the lake?

Speed: 
1 hour = 40 miles


40 miles :

40 miles  = 1 hour 


1 mile :

40 miles = 1 hour
1 mile = 1 ÷ 40
1 mile = 0.025 hour


60 miles :

1 mile = 0.025
60 miles = 0.025 x 60 
60 miles = 1.5 hour


It will take 1.5 hours

Because the price would be 25% off the 25% off, which for example would be 25% off 20 dollars, which it would be 15 dollars. then, 20% off 15 dollars would be 11.25, and not 10.