Clamps is correct, because nowhere in your problem statement did you put a time limit on how long the trip needs to be. Just because Warr planned to originally complete his "trip" in a time period t (e.g. 1 hour) doesn't make it any less of a "trip" if he takes time 2*t (2 hours). A trip is a trip. Now if you had specified how quickly he needs to get there AND the average speed, then you would have a noodle scratcher. As it stands, this isn't a trick question at all.

Try again.

 

PLEEEEEEEEEEAAAAAAAAAAAASSSSSSSSEEEEE close the door

 

I Feel Like Im On Lsd

 

120

 

Good problem, even if he went an infinite speed he could only get really close to 80mph, but never equal it.

 

That was in the Parade about two weeks ago.

 

Parade magazine? Ok everyone who's seen the Family Guy movie, feel free to jump in here.

 

repost...my computer sux and causes me to press send a million times

 

this is ghey

please stop the insanity

 

HAHA

 

sorry for the repost

 

repost

 

There IS a time limit!!! It's built into the given items. To reach the given goal of X miles at 80mph, then the time limit is (X / 80) hours... since you can't be driving for less than (X / 80) hours at 80mph, and still travel X miles.

Plug in some numbers and try...

80 miles @ 80mph = 80/80 hours
40 miles @ 80mph = 40/80 hours
160 miles @ 80mph = 160/80 hours

So...

If he's going 80 miles, his limit is 80 / 80 hours... if he's already done 40 miles @ 40mph, he's already used his hour (80 / 80)!
If he's going 160 miles, his limit is 160 / 80 hours... if he's already done 80 miles @ 40mph, he's already used his 2 hours (160 / 80)!
If he's going 40 miles, his limit is 40 / 80 hours... if he's already done 20 miles @ 40mph, he's already used his half hour (40 / 80)!

 

This is IMO the answer. yes it's obvious.. but it's right. plane right.

 

oh s**t, you're right ... but the answer still stands... with what was given in the original question (nearly no restrictions) I don't see why this can't still stand.