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In which order should the four different digits be arranged to obtain the largest 4 digit number
Given: The digits 0, 1, 2, 3,....9
To find: The largest four-digit number
Solution:
The digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Among the above, the largest four digits are: 6, 7, 8, 9
To get the largest 4 digit number with four different digits, we have to arrange them in descending order as follow
9 8 7 6
So, 9876 is the largest 4-digit number obtained by arranging four different digits.
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