<p>1) If a:b = 3:5 and a:c = 5:7, what is the value of b:c?</p>

<p>(A) 3:7

(B) 21:35

(C) 21:25

(D) 25:21 --> Answer

(E) 7:3</p>

<p>2) If 500 pounds of mush will feed 20 pigs for a week, for how many days will 200 pounds of mush feed 14 pigs?</p>

<p>(A) 4 --> Answer

(B) 5

(C) 6

(D) 7

(E) 8</p>

<p>3) If 3a=2b and 3b=5c, what is the ratio of a to c?</p>

<p>Answer: 10/9 or 1.11</p>

<p>Can someone explain these?</p>