The total number of 4-digit numbers is
9000
9999
10000
none of these
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The greatest 4-digit number = 9,999.
The smallest 4-digit number = 1,000.
Total number of 4-digit numbers = 9,999 - 1,000 + 1
= 9,000.
Hence, option 1 is the correct option.
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The difference between the place values of 6 and 3 in 76834 is
3
5700
5930
5970
The sum of the place values of all the digits in 5003 is
8
53
5003
8000
The product of the place values of two-threes in 73532 is
90000
99000
1000
The smallest 4-digit number having distinct digits is
1234
1023
1002
3210