3
6 and 3
28
To achieve the greatest difference between two numbers formed by the digits 7, 6, 8, 3, 5, and 2, you should place the largest digits in one number and the smallest in the other. For example, placing 8, 7, and 6 in one box to form 876 and 3, 5, and 2 in the other to form 532 creates the largest difference. The difference would be 876 - 532, which equals 344. Thus, the optimal arrangement is 876 and 532.
Decimal has ten different digits - 0 1 2 3 4 5 6 7 8 9 Binary only has two different digits - 0 1
3
6
675:929::123:___ SOLUTION : Sum Of Digits in 675 is 6+7+5 = 18 Sum Of Digits in 929 is 9+2+9 = 20 Therefore, difference between them is 2 Sum Of Digits in 123 is 1+2+3 = 6 and sum of digits in 242 is 2+4+2 is 8 Therefore, difference is same So, the answer is 242
9 - 3 = 6
89999996-80000006=9999990
6
The difference is 360.
120 There are 6 digits in total. The numbers with 3 digits, with all digits distinct from each other, are the permutations of the 6 digits taken 3 at a time, and therefore there are 6*5*4 = 120 of them.