SOLUTION: a box of 6 coins(penny, nickel,dime,or quarter) worth $.67 what is the probability that a nickel is drawn first and then a quarter? Assume no replacement and that all coins are equ

Algebra ->  Probability-and-statistics -> SOLUTION: a box of 6 coins(penny, nickel,dime,or quarter) worth $.67 what is the probability that a nickel is drawn first and then a quarter? Assume no replacement and that all coins are equ      Log On


   

Question 957900: a box of 6 coins(penny, nickel,dime,or quarter) worth $.67 what is the probability that a nickel is drawn first and then a quarter? Assume no replacement and that all coins are equally likely.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
First you need to solve for the number of coins.
The combination that works is
2 Q, 1 D, 1 N and 1 P.
So then,
P%28N%29=1%2F6
P%28Q%29=2%2F6=1%2F3
So then,
P=P%28N%29%2AP%28Q%29
P=%281%2F6%29%281%2F3%29
P=1%2F18