If each of 3 digit code is formed of integers from 1 to 25, inclusively, and each of the digits are different, how many possible codes are there?  Choose the correct choice from the following choices:	A) 13600	B) 13500	C) 13400	D) 13800	E) 13900
Code consists of 3 digits and no digit is repeated.   First digit of the code can have 25 possibilities   Second digit can have 24 possibilities   Third digit can have 23 possibilities   Total number of possible codes = 25*24*23= 
<gadget id="calculator">25*24*23</gadget>
<output>13_800</output>
13800   Answer: 13800
<result>D</result>
If each of 3 digit code is formed of integers from 1 to 25, inclusively, and each of the digits are different, how many possible codes are there?