how many numbers between 20000 and 30000 can be formed using the digits 2,3,5,6,7 if each digit may be repeated any number of times in any number?

Dear Student,

First digit of the number can be occupied by 2 only since number is between 20000 and 30000

Now, remaining four digits can be occupied by any of the 5 digits 

hence total no. of numbers that can be formed = 2 x 5 x 5 x 5 x 5 = 1250 

REGARDS