HELP........Geometric...seems strange

[sxmo]

hi everyone...
I just encountered a problem...quite strange.....It is the first time that I am wondering the answer is wrong actually.

The problem is :
A fair die is tossed until the first 5 appears. Let X denotes the random variable equal to the number of tosses required.
Compute E[14X].

seems quite easy at first...I thought this is a geometric distribution
and E(14x) = 14E(x) then E(x) = 6. woo...then the answer comes out...

but the right answer is 119.....completely lost

Plz help...A million thanks!!!!

[examp]

I alSo got E(X)= 6 and then E(X)= 14(6)=84. what manual is that?

[sxmo]

I alSo got E(X)= 6 and then E(X)= 14(6)=84. what manual is that?

Hi
Thanks for answering me. I have struggled a lot ........This problem is from Saab.org. someone here encouraged me to go over that site.

[/nick.b]

Heh, that's odd. Maybe it's an 8 and a half sided die..