how many 3 digit positive integers with distinct digits are there, which are not multiples of 10?
Choose the correct option
A) 576	B) 520	C) 504	D) 432	E) 348
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">9 - 1</gadget>
<output>8</output>

<gadget id="calculator">9 * 8</gadget>
<output>72</output>

<gadget id="calculator">72 * 8</gadget>
<output>576</output>

<result>A</result>
how many 3 digit positive integers with distinct digits are there, which are not multiples of 10?
multiply(multiply(multiply(3, 3), subtract(multiply(3, 3), const_1)), subtract(multiply(3, 3), const_1))
a number not to be a multiple of 10 should not have the units digit of 0 . xxx 9 options for the first digit ( from 1 to 9 inclusive ) . 8 options for the third digit ( from 1 to 9 inclusive minus the one we used for the first digit ) . 8 options for the second digit ( from 0 to 9 inclusive minus 2 digits we used for the first and the third digits ) 9 * 8 * 8 = 576 . answer : a .