Question

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?

Answer 1

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