How many 6 digits no can be formed using 0,1,2,3,5,7 without repeatation?	Select.
A) 500  B) 600  C) 700  D) 800  E) 900
no. of words with all nos. is 6!   no. of words with 0 in 1st position is 5!   required no. 6!-5!=600   ANSWER:600
<result>B</result>
How many 6 digits no can be formed using 0,1,2,3,5,7 without repeatation?