How many three digit numbers can be formed using the digits {1, 3, 4, 5, 7,8, 9}(repetition of digits is not allowed)?	Pick:
A) 360	B) 210	C) 278	D) 279	E) 274
The given digits are six.   The number of four digit numbers that can be formed using six digits is   7P3 = 7* 6 * 5= 
<gadget id="calculator">7* 6 * 5</gadget>
<output>210</output>
210   Answer: 210
<result>B</result>
How many three digit numbers can be formed using the digits {1, 3, 4, 5, 7,8, 9}(repetition of digits is not allowed)?