Question

I am a five digit number. If you exchange the smallest and the largest
digit from the greatest number formed by the digits 3, 4, 7, 8 and 9,
then the number obtained, is me. Who am I?
I Am not understanding also explain the answer please​

Answer 1

Answer:

38749

Step-by-step explanation:

The greatest no formed by 3,4,7,8 and 9 is:

98743

Here largest digit is 9 and the smallest is 3

on interchanging 9 and 3 we get

38749

Hence the no is:38749