I have a bag of 6 balls, 2 red, 2 blue and 2 green. How many possible combinations are there of all six balls.
What if there were 9 balls 3 of each colour? How many combinations are there of all nine balls?
How did you work it out?
Please help!! Thank you!!
2007-10-03 22:06:04 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
combinations [in first case]:
one ball from each color = 1 combination (Green-Blue-Red)
quantity of same combination = 2 (2G, 2B, 2R=6)
combination of 2 colors = 3 [GR, GB, BR]
quantity of same combinations = 6 [2GR, 2GB, 2BR=6]
in second case just add the additional balls in above formula
i.e.
one ball from each color = 1 combination (Green-Blue-Red)
quantity of same combinations = 3 (3G, 3B, 3R=9)
combination of 2 colors = 3 [GR, GB, BR]
quantity of same combinations = 9 [3GR, 3GB, 3BR=9]
2007-10-03 22:33:32 · answer #1 · answered by Kamran 3 · 0⤊ 0⤋
If you are selecting all the balls, there is only one combination.
2007-10-03 22:09:50 · answer #2 · answered by Scarlet Manuka 7 · 0⤊ 0⤋