The smallest 4 digit number with different digits is _______________

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Solution

Answer : 1023

the smallest digit, other than 0, at thousand place to make smallest 4 digit number is 1.

As 1 is already used, smallest digit (0) can be used at hundred place.

similarly we can place 2 at tenth position and 3 at unit position.

So, smallest 4 digit number is 1023.

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Similar questions

a.) Largest 4-digit number using any four different digits with digit 5 always at the tens place	i.)1032
b.) Largest 4-digit number formed from the digits 5, 0, and 7 by using any one digit twice	ii.)3399
c.) Smallest 4-digit number using any four different digits with digit 2 always at the ones place	iii.)7750
d.) Smallest 4-digit number formed using the digits 3 and 9 equal number of times	iv.)9857

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