A man alternately tosses a coin
and throws a die beginning with the coin. The probability that he gets a head
in the coin before he gets a 5 or 6 in the dice is
`3//4`
b. `1//2`
c. `1//3`
d. none of these
A. `3//4`
B. `1//2`
C. `1//3`
D. none of these
