(175) 1

Part of 1988 Tournament Of Towns

Problems(1)

TOT 175 1988 Spring Train S1 m,n same digits m+n =999 . . . 9

Source:

Is it possible to select two natural numbers

m

n

so that the number

n

results from a permutation of the digits of

m

m+n =999 . . . 9

number theoryDigits