If there are 30 red and blue marbles in a jar, and the ratio of red to blue marbles is 3:2, what is the probability that, drawing twice, you will select two red marbles if you return the marbles after each draw?  Choose the correct option:
A) 1/25
B) 2/25
C) 6/25
D) 9/25
E) 21/25
30 red and blue marbles in a jar, and the ratio of red to blue marbles is 3:2   So, 5x=30 ---&gt; x=6   Red marbles = 3*x = 3*6= 
<gadget id="calculator">3*6</gadget>
<output>18</output>
18   Blue marbles= 2*x = 2*6= 
<gadget id="calculator">2*6</gadget>
<output>12</output>
12   Prob to select a red marble= 18/30 = 3/5   Prob to select 2 red marbles with replacement = 3/5*2*5= 
<gadget id="calculator">3/5*2*5</gadget>
<output>6</output>
6/25   Hence, answer will be 6/25.
<result>C</result>
If there are 30 red and blue marbles in a jar, and the ratio of red to blue marbles is 3:2, what is the probability that, drawing twice, you will select two red marbles if you return the marbles after each draw?