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In how many ways can 10 soldiers stand i...

In how many ways can 10 soldiers stand in two rows having 5 soldiers in each row?

A

3628800

B

7257600

C

35400

D

985000

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The correct Answer is:
A
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AAKASH INSTITUTE-PERMUTATIONS AND COMBINATIONS -Assignment Section A Objective type questions (One option is correct )
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  12. ""^(15)C(9)-""^(15)C(6)+""^(15)C(7)-^(15)C(8) equals to

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  15. The number of parallelograms that can be formed from a set of four par...

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  18. Number of different striaght lines that cn be formed by joining 12 dif...

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  20. Number of triangles that can be formed by joining the 10 non-collinear...

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