If a: b :: 3 : 7, then what is (5a+6b): (a-4b)?	Pick.
A) 57:11 B) -57:11 C) 11 : 10 D) -57 : 25 E) -1 : 10
a/b= 3/7   -57 : 25ividing numerator &amp; denominator of ' (5a+6b)/(a-2b) 'by b,   [5(a/b)+6]/[(a/b)-4]= [5*(3/7)+6]/[(3/7)-4]= -57/25   ANSWER:-57 : 25
<result>D</result>
If a: b :: 3 : 7, then what is (5a+6b): (a-4b)?