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#1 2012-10-13 00:41:40
- juan
- Guest
4 digit no.
Two 4-digit numbers are to be formed such that the sum of the number is also a 4-digit number and in no place the addition is with carrying the number of ways of forming the number under above conditions is
#2 2012-10-13 01:01:09
- bobbym
- Administrator
Offline
Re: 4 digit no.
Hi juan;
I am taking it that you mean the sum of the two 4 digit numbers must be a 4 digit number and in no column can there be a carry.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.