Mathematics
Answer
The digits available are 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.
For the greatest 4-digit number with distinct digits, arrange the largest digits in descending order:
Thousands place: 9 (largest)
Hundreds place: 8 (next largest)
Tens place: 7 (next largest)
Ones place: 6 (next largest)
Hence, the greatest 4-digit number having distinct digits is 9,876.
Related Questions
Form the smallest and greatest 4-digit numbers by using any one digit twice from the digits:
(i) 5, 2, 3, 9
(ii) 6, 0, 1, 4
(iii) 4, 6, 1, 5, 8
Write (i) the greatest number of 6 digits (ii) the smallest number of 7 digits. Also find their difference.
Write the smallest 4-digit number having distinct digits.
Write the greatest 6-digit number using three different digits.