Let N be a 3-digit positive integer and let M be another 3-digit positive integer obtained by reversing the digits of N.
Find the number of possible values of N such that N-M= 396
Please help, I have no idea how to solve
You have about 50 candidates for your 2 numbers. Just reverse the digits of any of these 50 numbers.
501 511 521 531 541 551 561 571 581 591 602 612 622 632 642 652 662 672 682 692 703 713 723 733 743 753 763 773 783 793 804 814 824 834 844 854 864 874 884 894 905 915 925 935 945 955 965 975 985 995 Total = 50
