how many 6 digits numbers greater than 740000 can be formed by using the digits 5.6.7.8.9.2.0 repetition is not allowed
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Answer:
I'm not too sure. about options..
Step-by-step explanation:
leaving the case where 2 is at 6th position as repetition is not allowed so the digits we get by that would not be our required case.
case 1 :
70_ _ _ _ = 5⁴
case 2:
when at 6 position we don't use digits (7;0;8;9)
3*6*5*4*3*2= 2160
on adding
= 5⁴+2160= 625+2160
= 2785
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