Question

Mr.Smith asked his students weather they prefer to go to a museum or the zoo for a field trip.He found that 35% of the students prefer to go to a museum,45% prefer to go to the zoo,and the rest have no preference.What is the ratio of students who have no preference to the students who prefer to go to the museum?

A). 1: 4
B). 1: 5
C). 4: 7
D). 4: 9


The answer is Coming but I don't know how. Can someone show me how?

Answer 1

The answer is C 4:7  HoPe ThIs HeLpS

Answer 2

35% plus 45% of the students pref to visit a mus. or the zoo.  That leaves 20% who have no pref.  The ratio of those who have no pref to those who pref to go to the museum is this 20% / 35%, which reduces to 4/7.