how many four digit numbers can be formed by using the digits 0,3,4,5,6 when repetition is not allowed?
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4*4*3*2=96
Four digit number will have 4 places
Unit ,Tens ,Hundred ,Thousand
Thousands place can be filled in 4 ways
Hundreds in 4 ways
Tens in 3 ways
Units in 2 ways
So,,,,
4*4*3*2=96
Four digit number will have 4 places
Unit ,Tens ,Hundred ,Thousand
Thousands place can be filled in 4 ways
Hundreds in 4 ways
Tens in 3 ways
Units in 2 ways
So,,,,
4*4*3*2=96
chauhanved55:
thanx
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