If you are driving at the speed of 40 miles/hour that means that in one hour you cover a distance of 40 miles.

So, in a theoretical situation, it would take you an hour and a half to reach the lake if it is 60 miles.

Let's see how:

You travel 40 miles in one hour and 60 miles in z hours, so, z would be:

60/40 = 1.5 hours

1.5 hours means one hour and 30 minutes.

Of course, this only applies to a theoretical situation. In reality, you might have to reduce your speed at some points along the road or you may have to stop for a while (maybe at a gas station or to grab a latte). So, in real life, it might take you longer to reach your destination.

But if this is a math question, your answer is 1 hour and 30 minutes.

God bless

So, in a theoretical situation, it would take you an hour and a half to reach the lake if it is 60 miles.

Let's see how:

You travel 40 miles in one hour and 60 miles in z hours, so, z would be:

60/40 = 1.5 hours

1.5 hours means one hour and 30 minutes.

Of course, this only applies to a theoretical situation. In reality, you might have to reduce your speed at some points along the road or you may have to stop for a while (maybe at a gas station or to grab a latte). So, in real life, it might take you longer to reach your destination.

But if this is a math question, your answer is 1 hour and 30 minutes.

God bless