80% of 5/8 =  Choices.
A) 0.2 B) 0.5 C) 0.6 D) 0.75 E) 1.0
Should be simple.   0.8*5/8 = 4/8 = 1/2= 
<gadget id="calculator">1/2</gadget>
<output>1/2 = around 0.5</output>
0.5   Correct Option : 0.5
<result>B</result>
80% of 5/8 =