0 0 votes If $n^2= 12345678987654321$, what is n? 12344321 1235789 111111111 11111111 Quantitative Aptitude cat1999 quantitative-aptitude + – go_editor 14.2k points 2.0k views answer comment Share Follow Print 0 reply Please log in or register to add a comment.
Best answer 1 1 vote $11^{2} $ =121 $111^{2}$ =12321 $1111^{2}$ = 1234321 Similarly $(111111111)^{2}$ =12345678987654321. Hence,option (C)111111111 . . Leen Sharma answered May 10, 2016 • selected May 14, 2016 by srestha Leen Sharma 11.6k points comment Share Follow 0 reply Please log in or register to add a comment.