Question

Find out the number of ways in which the number 7842 be written

Answer 1

Answer:

as the number is 7842

then the numbers that could be written in other ways are:

7824,7428,7248,7284,8427,8472,8247,8742,8724,8274,4872,4287,4827,4278,4728,4782,2478,2487,2847,2874,2748,2784,

and that's it