SOLUTION: 18) In a box there are 8 red and 6 blue markers. How many ways can you select 3 markers if:
(a) exactly 1 red is selected?
(b) no more than 2 blue are selected?
(c) there are mo
Algebra.Com
Question 1018797: 18) In a box there are 8 red and 6 blue markers. How many ways can you select 3 markers if:
(a) exactly 1 red is selected?
(b) no more than 2 blue are selected?
(c) there are more blue than red selected?
I'm not sure where to begin can you please guide me through?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
8 ways to select one red.
6C2 ways to select 2 blue
that is 15.
numbering the blues 1 through 6
12
13
14
15
16
23
24
25
26
34
35
36
45
46
56
So the number of ways are 8*15=120
no more than two blue mean 15 ways for 2+6 ways for 1+the number of ways one can select 3 from 8 red (0 blue). That is 8C3 or 56 ways, so the total is 15+6+56=77 ways.
----------------------
more blue than red.
3 blue and 0 red. That is 6C3=20 ways. 6C3 is the number of ways one can select 3 items from 6. It si 6!/3!/3!, or 6*5*4*3!/3!3!
2 blue and 1 red. That is 6C2*8=120 ways and the total is 140 ways.
RELATED QUESTIONS
If Mr. Romero has 14 black markers, 10 blue markers, 8 red markers, and 7 green markers... (answered by rothauserc)
A box contains 20 blue, 5 red, and 25 green markers.
If a student randomly chooses two (answered by rothauserc)
A box holds 4 red plastic markers and 4 black plastic markers. If markers are not... (answered by checkley79)
A box contains 3 red, 4 blue, and 5 white balls. In how many ways can we select 4 balls... (answered by ikleyn)
A box contains 5 red, 4 blue, and 3 white balls. In how many ways can we select 4 balls... (answered by ikleyn)
Becky has a box of markers that contains 1 blue, 4 black, 2 red, and 3 green markers.... (answered by stanbon)
In how many ways can we select 3 marbles from a box containing 5 red, 4 blue and 3 white... (answered by stanbon)
Probability P (A or B), P (A and B) there are M&M candies in a jar: Red (7), Blue (7) and (answered by stanbon)
a box contains 4 red, 3 blue, 2white balls. In how many ways can we select 3 balls such... (answered by math_helper)