Question

greatest 4 digit odd number with 4 7 9 5​

Answer 1

Answer:

4-digit number

You mean a whole number in composed of 4 digits in the usual positional decimal system

If the repetition is allowed

it would be 9999

If you want all four digits different

Then

Choose first three digits in decreasing order

9,8,7

The remaining would be 6,5,4,3,2,1,0

Choose the largest odd number from these seven digits

That is five.

So the largest odd number comprised of four digits all distinct is

9875

:-)