00:01
Hello students, let us do this question.
00:03
We have given 8 digits from 1, 2, 3, 4, 5, 6, 7, 8.
00:10
So total 8 digits are given.
00:13
We want to form a 5 digit number in such a way that number should be greater than 70 ,000.
00:18
And no digit should be repeated.
00:21
Now in 70 ,000, in 5 digit number, there are 5 places.
00:25
The first is 10 ,000 place or the first place.
00:35
This place, as we want number greater than 70 ,000, this place can be used with digits 7 and 8.
00:44
And so this place can be filled two ways.
00:49
Now, the 1000's place...