<H2>From 3 digits how many two-digit numbers you can make</h2>

 For example, we have the digits 1,5,8

  How many two-digit numbers can I have?

15  18  51, 81, 58 ,85 

Arrangement numbers,are the number of ways

 that a number of things can be ordered or arranged.

What is the mathematical formula

 for calculating Arrangement numbers?

 

(n)k= n!/(n-k)! 

(3)2=3!/(3-2)!=3!/1!=

1X2X3/ 1=6/1=6

Answer is 6 two digit numbers.

By Panos Kalliantasis 

 

 If you want to see the answer and explanation  of

"Bet? You can't solve this math reasoning"

 

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