The difference between a number and its two-fifth is 510. What is 12% of that number?
Choices:
A) 58 B) 110 C) 76 D) 102 E) 86
Let the number be x. Then,   x - 2/5 x = 510   x = (510 * 5)/3= 
<gadget id="calculator">(510 * 5)/3</gadget>
<output>850</output>
850   12% of 850= 102.   Answer:102
<result>D</result>
The difference between a number and its two-fifth is 510. What is 12% of that number?