How many four digit numbers can be formed using the digits {1, 3, 4, 5, 7,9}(repetition of digits is not allowed)?
Choose the correct choice from the following answers: A) 360 B) 838 C) 372 D) 737 E) 273
The given digits are six.   The number of four digit numbers that can be formed using six digits is ⁶P₄ = 6 * 5 * 4 * 3= 
<gadget id="calculator">6 * 5 * 4 * 3</gadget>
<output>360</output>
360.   360nswer:360
<result>A</result>
How many four digit numbers can be formed using the digits {1, 3, 4, 5, 7,9}(repetition of digits is not allowed)?