Question

If I create all possible 5 digit numbers by using the digits 1, 2, 3, 6 and 5 (each digit is used exactly once), and arrange them in ascending order, which number would be the 50th number in the list?​

Answer 1

Answer:

Step-by-step explanation:

12 is the number would be the 50th number in the list

Answer 2

Given:

Five digits 1, 2, 3, 5, and 6 are given and 5 digit numbers are to form using each digit at once and arrange in ascending order.

To Find

50th number in the list

Solution:

As we have to arrange the numbers in ascending order then lowest number will start with 1 at thousand places,

Let

1 at ten thousand places,

∴ Total numbers formed = 4! =24

now, with 2 at the ten-thousand place,

∴ Total numbers = 4! = 24

so,

the 49th number will start with 3 at ten thousand place

49th number will be

⇒ 31256

The 50th number will be when arranged in ascending order:

⇒ 31265

Hence, the 50th number in the list will be 31265.