Thursday

April 24, 2014

April 24, 2014

Posted by **student** on Sunday, July 15, 2007 at 4:13pm.

a bag contains 5 aplles and 3 oranges. If you select 4 pieces of fruit without looking, how many ways can you get exactly 3 apples?

so i did:

"c"=stands for combination

(5C3) =10

(3C1) = 6

so i multiplied 10*6 = 60 ways possible

It seems to me it is not that...

Ways to get apples

AAAO

AAOA

AoAA

OAAA

so what do you refer too

60 ways sounds right to me.

You could have

A1,A2,A3,O1

A1,A2,A3,O2

A1,A2,A3,O3

A1,A2,A4,O1

......

......

......

A6,A7,A8,O3

Of course, I presume order doesnt matter.

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