why does 0 cannot occur at the first place in a permutation.
Asked by NAKSHATRA | 8th Nov, 2013, 07:11: PM
For example, if you want to make a four digit number, the thousands place cannot be a zero.
If it is a zero, then the number will be a three digit number.
That is why the first place of a number should be always from 1-9 and not 0.
Answered by Vimala Ramamurthy | 10th Nov, 2013, 11:11: AM
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