Nakib, GSR, Duttsit, Titleist, and Laxie need to drive home

Question

Nakib, GSR, Duttsit, Titleist, and Laxie are riding.

Only Laxie and Nakib have the license.

There are 7 seats including the driving seat.

Information about titleist is not important since he or she does not occupy a seat.

Case1: Laxie drives
- there are 6 seats and 4 people.
- 6 * 5 * 4 * 3 = 360

Case2: Nakib drives
- there are 6 seats and 4 people.
- 6 * 5 * 4 * 3 = 360

Total 720 possibilities.

*******************************************************

However, we cannot assume that only Laxie or only Nakib will drive the SUV. The fact that only Laxie and Nakib have the license does not necessarily mean that only Laxie and Nakib will drive the SUV.

gamjatang · Answer

Nakib, GSR, Duttsit, Titleist, and Laxie are riding.

Only Laxie and Nakib have the license.

There are 7 seats including the driving seat.

Information about titleist is not important since he or she does not occupy a seat.

Case1: Laxie drives
- there are 6 seats and 4 people.
- 6 * 5 * 4 * 3 = 360

Case2: Nakib drives
- there are 6 seats and 4 people.
- 6 * 5 * 4 * 3 = 360

Total 720 possibilities.

*******************************************************

However, we cannot assume that only Laxie or only Nakib will drive the SUV. The fact that only Laxie and Nakib have the license does not necessarily mean that only Laxie and Nakib will drive the SUV.

We need one more information - only those who have the valid license can drive.

laxieqv · Answer

So one of the rest of the gang will drive the car and we'll be caught by cop?!

..Btw, I don't know how to drive a car...that license is a fake one :twisted:

laxieqv · Answer

Well, gamjatang's assumption may be correct ...no one says the one with a license will drive the car

. And maybe we wanna have some fun being chased by cops for the one who is at the wheel illegally drive the car :roll:

. Btw, Matt, why didn't you add youself in?? :wink:

christoph · Answer

ets doesnt tolerate criminal behaviour :wink:

GMATT73 · Answer

Stanford rejected my application for the 7th straight year, so I wasn`t invited to the reception. 8-)

BTW: Titleist cannot be seated inside the SUV or he will get sick and blow chunks! Laxie doesn`t know how to drive the Hummer, but she IS licensed just in case. Nakib has an outstanding warrant for a parking ticket, but that`s better than a DUI! Duttsit and GSR are not licensed. Nobody has enuff cash to pay a cab fare, and you all must catch an early morning flight out of SF. Bottom line: the Hummer must roll!

GMATT73 · Answer

As long as Titleist is strapped down to the roof like a xmas tree, then there is no criminal intention.

laxieqv · Answer

<img src="{SMILIES_PATH}/icon_exclaim.gif" alt=":!:" title="Exclamation" /> <img src="{SMILIES_PATH}/icon_exclaim.gif" alt=":!:" title="Exclamation" /> <img src="{SMILIES_PATH}/icon_exclaim.gif" alt=":!:" title="Exclamation" /> <img src="{SMILIES_PATH}/icon_razz.gif" alt=":P" title="Razz" /> <img src="{SMILIES_PATH}/icon_razz.gif" alt=":P" title="Razz" /> <img src="{SMILIES_PATH}/icon_razz.gif" alt=":P" title="Razz" />

christoph · Answer

u double counted !

7 spaces=> _ _ _ _ _ _ _ 
1 space is occupied by x or y=> x _ _ _ _ _ _ 
6 spaces are left for 3 ppl=> a b c S S S => S for space
6!/3! for x or 6!/3! for y, hence 6!/3! * 2

GMATT73 · Answer

Nice work Christof! :cool

Kampai to you buddy :beer

gsr · Answer

Wow!! This is cool! Cooler is the 'Stanford Stuff' I'll be glad if they even let me in to see how it is! So near, yet so far!! I've just seen it from outside :wink: