Question

The smallest 4- digit number formed using the digits 7,0,1 and 5 is___​

Answer 1

1057 is the smallest four digit number without repeat number

Answer 2

Answer:

The smallest 4- digit number formed using the digits 7,0,1 and 5  = 1057

Step-by-step explanation:

Given

Digits 7,0,1,5

To find,

The smallest four-digit number formed using these digits

Solution:

Since we have four digits, the smallest four-digit number can be formed by writing the digits in ascending order.

The ascending order of the digits = 0157

Since we need to form a four-digit number, then '0' cannot be in the thousand's place,

hence in order to make the smallest four-digit number, we should consider the next smallest digit in the thousand's place and then arrange the remaining digits in ascending order.

∴ The thousand's place digit is 1

Hence the required number is 1057

The smallest 4- digit number formed using the digits 7,0,1 and 5  = 1057

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