Question

To demonstrate 6 x 4, using coins what
dimension of rectangle should be formed?
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Answer 1

Answer:

a rectangle should be formed........ OK...... XĐ

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

ach number will appear at units,at units ,tens,thouand,10 thousands place at 4C  3

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×3! or 4! times

1,2,3,4,5  

∴ the required sum would be  

4!(1+2+4+6+8)(10  

0 +10  1 +10  2  +10  3  +10  4  )  

=559944