Posted by **taylor** on Tuesday, September 28, 2010 at 12:47am.

A box of 6 coins (penny, nickel, dime or quarter) worth $0.67 is shaken. What is the probability that a nickel is drawn first and then a quarter? Assume no replacement and that all coins are equally likely.

- probability -
**Reiny**, Tuesday, September 28, 2010 at 8:26am
Obviously there will have to be 2 pennies.

The only way I can see to get 67 cents from 6 coins is

QQDNPP

prob(nickel, quarter) = (1/6)(2/5) = 2/30 = 1/15

or

C(1,1)C(1,1)/(C6,2) = 1/15 in combination terms

## Answer This Question

## Related Questions

- Probability - 1) What is the probability of tossing 6 coins and getting at least...
- Probability - * I have a question. The sentence below says, "A PENNY, a NICKEL, ...
- math - A box contains 4 coins: a penny, a nickel, a dime, and a quarter. It ...
- Probability - Jolie has 6 quarters, 6 dimes, 4 nickels, and 10 pennies in her ...
- Math - A penny, a nickel and a dime and a quarter are tossed. What is the ...
- math - John has 8 quarters, 3 dimes,and 7 nickels in the change holder in his ...
- Math - I have 3 nickels, 1 quarter, and 1 penny in my pocket. If I pick out a ...
- Statistics - Your pocket contains 2 quarters and 2 Nickels. You randomly pick ...
- math - A student has a penny, nickel, dime, and quarter distributed two coins ...
- elementary math - A student has a penny, nickel, dime, and quarter distributed ...

More Related Questions