**MEDAL WILL BE AWARDED** Find the number of ways to purchase 3 different kinds of drinks from a selection of 10 drinks.
@zepdrix any clue?
You can do it in number of ways
Tell me how many ways you can choose 1 different drink
from 10 different drinks
@katherinesmith
10?
right!
Now assume you have chosen 1st drink and you have to choose your 2nd (different) drink - how many ways can you do that?
HInt: How many different drinks are left after you have chosen your first drink?
9
right!!
Now how many ways to choose your 3rd drink??
7?
Of course not! (Only 2 drinks are taken out of 10)
what? my choices are 100 110 120 140 i really don't know where you're going with this
U just keep on it! YOu will get the answer :P
i've tried a million different combinations so i'm just gonna give up now
your wish :P
answer is 120 btw but u should not give up............u don't learn that way
And I am sure you never tried MILLION different combinations..........you could have got your answer b4 that
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