1.  The square root of 64009 is:

A. 253
B. 347
C. 363
D. 803

Answer: Option A

Explanation:

   2|64009( 253
    |4
    |----------
  45|240
    |225
    |----------
 503|  1509
    |  1509
    |----------
    |     X
    |---------- 

64009 = 253.