How many digits does integer x have?

This topic has expert replies
Legendary Member
Posts: 2276
Joined: Sat Oct 14, 2017 6:10 am
Followed by:3 members

How many digits does integer x have?

by VJesus12 » Sat Feb 17, 2018 7:51 am
How many digits does integer x have?

(1) The sum of the digits is 20.
(2) x^2 has 5 digits

The OA is B.

How can I solve this DS just using the statement (2)? Experts, may you show me how can I solve it? Thanks in advanced.