How many 6 digit number contain number 4 ? Pick.
A) 317608	B) 327608	C) 337608	D) 427608	E) 357608
total 6 digit no. = 9*10*10*10*10*10= 
<gadget id="calculator">9*10*10*10*10*10</gadget>
<output>900_000</output>
900000   not containing 4= 8*9*9*9*9*9= 
<gadget id="calculator">8*9*9*9*9*9</gadget>
<output>472_392</output>
472392   total 6 digit number contain 4= 900000 - 472392= 
<gadget id="calculator">900000 - 472392</gadget>
<output>427_608</output>
427608   ANSWER:427608
<result>D</result>
How many 6 digit number contain number 4 ?