<PRE><B>Question 133963</B>
19 percent of the teachers voted yes, whereas 95 percent of the students voted yes. If all teachers and students voted 91 percent of the voters voted yes, what is the student to teacher ratio?
:
Let x = number of teachers
Let y = number of student
:
.19x + .95y = .91(x+y)
:
.19x + .95y = .91x + .91y
:
.95y - .91y = .91x - .19x
:
.04y = .72x
y = {{{.72x/.04}}}
y = 18x
We can say the student to teacher ratio is 18:1</PRE>