What is the square root of 96,721?
Choose the correct choice from the following:
A) 476
B) 489
C) 289
D) 511
E) 311
1) Checking the last digits in the answer options A, C, E are out since last digit of the square is known to be 1.   2) C = 489^2 and E = 511^2   C = (300-11)^2 and E = (300 + 11)^2   Since we need the answer less than 90000 =&gt; C is out.   Thus we have 311 as the ans.
<result>E</result>
What is the square root of 96,721?