how many 3 digit numbers can be formed using the digits 2,3,4,5,6,7 without repetition
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6×5×4
30×4
120...,..,, .
select 3 no
s out of 6
30×4
120...,..,, .
select 3 no
s out of 6
iitaim1:
making three blanks
pls fast
ok
after watching we get it that we can have 6 diff. digits then we can see it that as we already used one no. we can use remaining 5 and again same 4
got it?
sry pls one more
_ _ _
put 654 in it
these are all the arrangements we can do
multiply them
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