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borishaifa [10]
2 years ago
12

In how many ways can 7 distinct red balls and 5 distinct blue balls be placed in a row such that all red balls are adjacent,

Mathematics
1 answer:
Vesnalui [34]2 years ago
6 0
The blue can be placed before the red or the red before the blue.
7 distinct balls have a permutation of 5040 while 5 distinct balls have a permutation of 120.
Each permutation of the reds can be combined with each permutation of the blues giving 5040×120=604800.
Double this to 1209600 to allow for the two positioning for red and blue.
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Answer:

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Step-by-step explanation:

Given:

ABC is a triangle

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