In a container of 60 coins, there are twice as many quarters as nickels and three times as many dimes as nickels. (a) Determine the number of each kind of coin in the container.
There are
quarters,
dimes, and
nickels in the container.
(b) If one coin is shaken from the container, the probability that the coin is a quarter is
The probability that the coin is not a nickel is
(c) If three coins are shaken from the container, the probability that their total value is more than $0.75 is __