M7MBA Moderator View User Profile Posts: 2058 Joined: Sun Oct 29, 2017 4:24 am Thanked: 1 times Followed by:5 members If \(a, b, c, d\) are \(4\) non-negative integers. Is \(a+c\) even? by M7MBA » Tue Jan 05, 2021 12:25 pm Timer 00:00 Your Answer A B C D E Global Stats If \(a, b, c, d\) are \(4\) non-negative integers. Is \(a+c\) even? 1. \(a^2+b^2+c^2\) is even. 2. \(b^2+c^2+d^2\) is even. Answer: E Source: e-GMAT Top Quote
