If A:B is 7:5, B:C is 3:4 and C is 30 then what is the value of A?  Choose the correct choice from the following options.
A) 31.5  B) 25.5  C) 32.5  D) 33.8  E) 35.7
31.5/B=7/5,   B/C=3/4,C=30   B=90/4   431.5/90=7/5   31.5=630/20   31.5=31.5   31.5NSWER:31.5
<result>A</result>
If A:B is 7:5, B:C is 3:4 and C is 30 then what is the value of A?