Question 8 ernest is planting flowers, four to a row. he is planting red, purple, yellow, and white

Question 8
Ernest is planting flowers, four to a row. He is planting red, purple, yellow, and white flowers, Each row must contain all four colors and be in a different order from right to left. How many rows can Ernest plant?

16

24

4

don't know; not enough information
hnwagner21
Asked Mar 24, 2010
Are you going to do any of your own homework?
24. If we just look at 3 of the four at a time, there are 6 possibilities, then adding in the 4th, well 6 times 4 is 24.

e.g.
234
243
324
342
423
432
Then when we add 1 into it, we get:
1234
1243
1324
1342
1423
1432
Then if we swap 1 with 2, we get:
2134
2143
2314
2341
2413
2431
We'd do that with 3 and 4, and thus you get 24 possibilities.
Oni_Kami
Answered Mar 25, 2010

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