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permutationa and combination help

2 bottles of soft drink and 5 bottles of juice are selected from 5 different bottles of soft drink and 12 different bottles of juice. The bottles selected are arranged in a row. How many arrangements can be made? My answer is 5C2 x12C5 x 7!. Why it is wrong?
Many thanks.
Original post by yfmak
2 bottles of soft drink and 5 bottles of juice are selected from 5 different bottles of soft drink and 12 different bottles of juice. The bottles selected are arranged in a row. How many arrangements can be made? My answer is 5C2 x12C5 x 7!. Why it is wrong?
Many thanks.


It's not wrong.
Reply 2
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yfmak
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6
Original post by ghostwalker
It's not wrong.


The answer is 950400. So it is wrong?
Original post by yfmak
The answer is 950400. So it is wrong?


I don't know where you've got that answer from, but it's incorrect.

Correct answer is 5C2 x12C5 x 7! = 39 916 800
(edited 6 years ago)
Reply 4
Avatar for yfmak
yfmak
OP
6
Oh. That will be great.
950400 is the answer from the test paper. It is a multiple choice question and there is no choice for 39916800.
May be the question is wrong. I should ask my teacher for the marks. Thanks a lotttt.

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