Question
The three-digit number is given. The sum of all different three-digit numbers with the same digits as the given number (including the given number) is
The three-digit number is given. The sum of all different three-digit numbers with the same digits as the given number (including the given number) is 1998. How many different three-digit numbers satisfy the given property?
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xyz xy yx2 y2 2xy zyx 1998 Thus adding 12345 and 6 we get 200x y x 20x y x 2x y x 1998 ...
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Advanced Engineering Mathematics
Authors: ERWIN KREYSZIG
9th Edition
0471488852, 978-0471488859
