The smallest 6-digit number that can be formed by the digits 7, 6, 0, 5, 8 and 4 is _______.
A
876504
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B
450678
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C
405678
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D
045678
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Solution
The correct option is C 405678 To form the smallest number (without repetition of digits) from the given digits, write the digits in ascending order.
0 < 4< 5 < 6 < 7< 8.
Remember that a number cannot start with 0 in the leftmost place.
Hence we will place it in 2nd position while forming the number. The required number is 405678.