Of the teams competing in the world archery championships, Forty 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.
Pick one.
A) 13/20 B) 15/20 C) 13/15 D) 7/20 E) 13/17
Half as manymeans half of EU, then   EU 40%   US 20%   AF 5%   the rest is 35%, answer 7/20
<result>D</result>
Of the teams competing in the world archery championships, Forty 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.