Question 9

\(N_{1}\) and \(N_{2}\) are two 4 digit numbers. Total number of ways of forming \(N_{1}\) and \(N_{2}\) so that \(N_{2}\) can be subtracted from \(N_{1}\) without borrowing at any stage, is equal to:

\(\bullet\) This question is part of the set For the JEE-nius;P

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