Question

The smallest 4-digit number that can be made using the digits 6, 5, 0, 4 without repetition is 
(a) 4560
(b) 4056
(c) 4065
(d) 4506​

Answer 1

Answer:

b - 4056

Step-by-step explanation:

We can arrange the numbers in ascending order:

0, 4, 5, 6

Now we can arrange the numbers:

0456

But since adding zero in the beginning makes it a 3 digit number, we change the order like this:

4056 (adding the next smallest number to the beginning.

Thus, the answer is 4056