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How many such 4 digits number are possible ?

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A 4 digit number having all distinct digits is such that the product of all digits is 8 less than the sum of all digits.
How many such 4 digits number are possible ?

posted Jun 11, 2015 by Amarvansh

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1 Solution

+1 vote

4,3,1,0 in 18 ways &
5,2,1,0 in 18 ways
As 0 should not be first digit because it will become 3 digit no.

So 18+18=36 ways.

Hence 36 4-digit no's will be possible.

solution Jun 12, 2015 by anonymous

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