At a school, three-fourths of the male students and two-thirds of the female students speak a foreign language. If the number of males is two-thirds the number of females, what fraction of the students speak a foreign language?
Choose one:
A) 2/3	B) 3/5	C) 4/5	D) 7/10	E) 13/20
Let x be the number of students in the school.   The number of males who speak a foreign language is (3/4)(2/5)x = (3/10)x   The number of females who speak a foreign language is (2/3)(3/5)x = (2/5)x   The total number of students who speak a foreign language is (3/10)x + (2/5)x = (7/10)x   The answer is 7/10.
<result>D</result>
At a school, three-fourths of the male students and two-thirds of the female students speak a foreign language. If the number of males is two-thirds the number of females, what fraction of the students speak a foreign language?