Q. 13
The smallest 4-digit number having three different digits is
A. 1102
B. 1012
C. 1020
D. 1002
Answer :
To obtain the smallest 4-digit number, we need to use digits in the ascending order.
The smallest 3-different digits are 0, 1and 2
As, 0 can’t come at thousand place,
The answer will be 1, 002
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