Of the teams competing in the world archery championships, 10 percent are from Europe. Half as many are from the United States and one twentieth are from Africa. What fraction of teams are from neither Europe, the US or Africa.  Choose the correct choice from the following:
A) 13/20	B) 15/20	C) 13/15	D) 16/20	E) 13/17
Assume 100 total people.   10% of 100 = 10 ---&gt;Europeans   1/2 of 10 ---&gt; 5 Americans   1/20 of 100 ---&gt; 5 Africans   Now you would add them all up, and minus it by the total (100). 100 - 20= 80. So, 80 people out of 100 are not EU, US or Africans. 80/100 is also equal to 16/20.   So therefore, the answer is 16/20
<result>D</result>
Of the teams competing in the world archery championships, 10 percent are from Europe. Half as many are from the United States and one twentieth are from Africa. What fraction of teams are from neither Europe, the US or Africa.