Question

What is the greatest four digit number using 3,0,9,1 without repetition is

Answer 1

The greatest four digit number using 3,0,9,1 without repetition is 9310.

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Answer 2

Answer:

The greatest 4 digit number formed using 3,0,9,1 without repetition is 9310.

Step-by-step explanation:

In order to form the greatest 4 digit with the given digits, we arrange the numbers is descending order.

Here 9 > 3 > 1 > 0

First of all, we choose the biggest number out of them.

Here, it is 9.

Therefore, the digits in the thousands place will be 9

The number is 9 _ _ _

Then, we will choose the number smaller than 9

Here, it is 3

Therefore, the digits in the hundreds place will be 3

The number is 9 3 _ _

Then, we will choose the number smaller than 3

Here, it is 1

Therefore, the digits in the tens place will be 1

The number is 9 3 1 _

Then, we will choose the remaining number

Here, it is 0

Therefore, the digits in the units place will be 0

The number is 9 3 1 0

Therefore, the greatest 4 digit number formed using 3,0,9,1 without repetition is 9310.