What is the unit digit in 7105 ?
Choose the correct choice from the following:
A) 1 B) 5 C) 7 D) 9 E) 11
Unit digit in 7105 = unit digit in [(74)26 * 7]   But, unit digit in (74)26 = 1   unit digit in 7105 = (1 * 7)= 
<gadget id="calculator">(1 * 7)</gadget>
<output>7</output>
7   ANSWER:7
<result>C</result>
What is the unit digit in 7105 ?