What percentage of numbers from 1 to 95 have squares that end in the digit 0? Choose the correct choice from the following choices
A) 1 B) 14 C) 9.47 D) 21 E) 22
Clearly, the numbers which have 1 or 9 in the unit's digit, have squares that end in the digit 1. Such numbers from 1 to 95 are 10,20,30,40,50,60,70,80,90.   Number of such numbers = 14.   Required percentage = (9/95 * 100) = 9.47%   ANSWER:9.47
<result>C</result>
What percentage of numbers from 1 to 95 have squares that end in the digit 0?