If ratio of number of red balls and white balls is 7 : 5, then what is the probability of drawing 2 balls such that one is red and other is white?

If ratio of number of red balls and white balls is 7 : 5, then what is

1.	If ratio of number of red balls and white balls is 7 : 5, then what is the probability of drawing 2 balls such that one is red and other is white?
A.	5/29
B.	14/87
C.	15/58
D.	28/87
E.	None of these
Answer» E. None of these