Answer:
625
Step-by-step explanation:
Notice that any 4 digit combination is less than 10000
So 5^4 = 625
since the numbers can be selected repeatedly
Also, 1 is not included as a selectable digit therefore 625 is sufficient
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Answer:
625
Step-by-step explanation:
Notice that any 4 digit combination is less than 10000
So 5^4 = 625
since the numbers can be selected repeatedly
Also, 1 is not included as a selectable digit therefore 625 is sufficient