SOLUTION: A bag of marbles contains seven purple, six gold and five white marbles. You select four. How many ways are there to get at least three purple?

Question 1199953: A bag of marbles contains seven purple, six gold and five white marbles. You select
four. How many ways are there to get at least three purple?

Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
.
A bag of marbles contains seven purple, six gold and five white marbles. You select
four. How many ways are there to get at least three purple?
~~~~~~~~~~~~~~~

P(at least three purple) = P(three purple, 1 non-purple) + P(four purples) = 

                         =  +  = 35*11 + 35 = 420.


ANSWER.  420 different ways.

Solved.

RELATED QUESTIONS
1. A committee of four people is to be chosen from a group of five women and six men.... (answered by stanbon)

a bag contains 91 marbles. there are two more than twice as many blue marbles as green... (answered by josgarithmetic,MathTherapy)

You've decided to give your parents a bag of marbles for their 20th wedding anniversary.... (answered by srinivas.g)

5. A bag contains four blue marbles, five green marbles, and three yellow marbles. How... (answered by stanbon)

Four marbles are drawn from a bag containing six green and five purple marbles. What is (answered by Boreal)

A bag contains 6 red marbles, 4 blue marbles, 7 white marbles and 9 yellow marbles. You... (answered by edjones)

A bag contains 5 red marbles, 6 blue marbles, 9 white marbles and 9 yellow marbles. You... (answered by )

A bag contains 8 red marbles, 7 blue marbles, 10 white marbles and 9 yellow marbles. You... (answered by ewatrrr)