Free Online Aptitude Tests
Username    Password        Forgot password?   Follow us on Facebook   Follow us on Twitter
Username                                  Follow us on Facebook   Follow us on Twitter
Home  |  Articles  |  Formulae  |  Practice Questions  |  Did you know?  |  Testimonials  |  Feedback


Puzzle Plex

Today's Puzzle

Today was Catherine´s birthday. She turned 24. Catherine is twice as old as Ryan was when Catherine was as old as Ryan now. How old is Ryan now?..................


Square Roots and Cube Roots

Practice Questions on Square Roots and Cube Roots



Properties of Perfect Square:


No perfect square ends with 2,3,7,8.
No perfect square ends with odd number of zeroes
Perfect square consisting of (n-1) or n digits will have n/2 digits in its root, 'n' is being an even positive integer
The square of any even number is a multiple of 4 while that of an odd number exceeds a multiple of 4 by 1.


Properties of Cube roots:


If a cube of a number ends in 1,4,5,6,9 and 0, then its cube root also ends in 1,4,5,6,9, and 0 respectively.
If the cube of a number ends in 2 and 8, then its cube root will end in 8 and 2 respectively.
If the cube of a number ends in 3 and 7, then its cube root will end in 7 and 3 respectively.