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What would be the value of (99! 8! 6! 5! 4!/100! 7! 3! 0!) = ??

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99! 8! 6! 5! 4!/100! 7! 3! 0! = ??

posted Jul 29, 2015 by anonymous

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1 Answer

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99! 8! 6! 5! 4! / 100! 7! 3! 0!
= 99! 8*7! 6! 5! 4.3! / 100*99! 7! 3! 0!
= 8. 6! 5! 4 / 100.1
= 25282923724800

(0! = 1, not zero, read http://mathforum.org/library/drmath/view/57128.html )

answer Jul 29, 2015 by Jcm
If the question was [99! 8! 6! 5! 4! / (100! 7! 3! 0!) ], the answer would be 99! / 100! * 8! / 7! * 4! / 3! * 6! * 5! = 1/100 * 8 * 4 * 6! * 5! = 27648
commented Jul 29, 2015 by Jcm



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+1 vote
Arrange the numbers 0,1,2,3,4,5,6,7,8,9

Arrange the Numbers 0 1 2 3 4 5 6 7 8 9.
so that they sum up to 100.
You Can use only + and -

For example for 0 1 2 3 4 sum up to 11

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0 votes
If 5 + 4 = 9; 3 + 5 = 9; 9 + 1 = 9; 1 + 6 = 8; 4 + 2 = 8; 1 + 7 = 7; 5 + 6 = 6; 3 + 7 = 3; 7 + 0 = 0 Then, 8 – 1 = ??

If
5 + 4 => 9
3 + 5 => 9
9 + 1 => 9
1 + 6 => 8
4 + 2 => 8
1 + 7 => 7
5 + 6 => 6
3 + 7 => 3
7 + 0 => 0
Then
8 – 1 => ??

+1 vote
If 1 2 3 = 4 5, 2 3 3 = 6 4, 3 2 1 = 3 9, 8 4 0 = 7 2 Then 1 1 1 = ? ?

If
1 2 3 = 4 5
2 3 3 = 6 4
3 2 1 = 3 9
8 4 0 = 7 2

Then
1 1 1 = ? ?

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