If there are 30 red and blue marbles in a jar, and the ratio of red to blue marbles is 6:4, what is the probability that, drawing twice, you will select two red marbles if you return the marbles after each draw?  Choose the correct choice from the following answers.
A) 1/25	B) 2/25	C) 3/25	D) 4/25	E) 21/25
30 red and blue marbles in a jar, and the ratio of red to blue marbles is 6:4   So, 10x=30 ---&gt; x=3   Red marbles = 2*x = 2*3= 
<gadget id="calculator">2*3</gadget>
<output>6</output>
6   2/25lue marbles= 3*x = 3*3= 
<gadget id="calculator">3*3</gadget>
<output>9</output>
9   Prob to select a red marble= 6/30 = 1/5   Prob to select 2 red marbles with replacement = 1/5*2*5= 
<gadget id="calculator">1/5*2*5</gadget>
<output>2</output>
2/25   Hence, answer will be 2/25.
<result>B</result>
If there are 30 red and blue marbles in a jar, and the ratio of red to blue marbles is 6:4, what is the probability that, drawing twice, you will select two red marbles if you return the marbles after each draw?