Question

What is the sum of five digit numbers formed by 0,1,2,3,4 which are less than 20,000 where the digits are not repeated

Answer 1

Answer:

Step-by-step explanation:

The possible 5 digit nos are

10234,10243,10324,10342,10423,10432,12034,12043,12304,12340,12403,12430,13024,13042,13204,13240,13402,13420,14023,14032,14203,14230,14302,14320

The sum of above digits are 299994

Answer 2

The sum of five digit numbers formed by 0,1,2,3,4 which are less than 20,000 where the digits are not repeated is 259980

Step-by-step explanation:

There are 4X4X3X2=96 such numbers. Important digits can be 1,2,3 and 4 which can have 24 occurrence .

Remaining 72 numbers will 0's and therefore 72X4-72=216

Overall occurrences of 1,2,3 and 4 in other places.

216/4=54 1's, 2's, 3's and 4's.

18 1's,2's,3's and 4's at hundredth, tenth and unit place.

[1+2+3+4]X24X1000 [occurrences at thousand's place]+[1+2+3+4] X 18 X[1+10+100]

=259980

Learn More

Using the digits 9,1,0,4,8 form the largest five digit and smallest five five digit number

https://brainly.in/question/18737065