How many three digit numbers can be formed using the digits {1, 3, 4, 5, 7,9}(repetition of digits is not allowed)?	Options:
A) 360
B) 297
C) 288
D) 179
E) 120
The given digits are six.   The number of four digit numbers that can be formed using six digits is   6P3 = 6 * 5 * 4= 
<gadget id="calculator">6 * 5 * 4</gadget>
<output>120</output>
120.   Answer: 120
<result>E</result>
How many three digit numbers can be formed using the digits {1, 3, 4, 5, 7,9}(repetition of digits is not allowed)?