Which one of the following can't be the square of natural number ?-A-32761B-81225C-42437D-20164E-None of these-C-42437

Question

Which one of the following can&#39;t be the square of natural number ?-A-32761B-81225C-42437D-20164E-None of these-C-42437

APTITUDE CRACK · Accepted Answer

C 42437 The square of a natural number never ends in 7. 42437 is not the square of a natural number.

Numbers - General Aptitude