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andy6128
06.05.2020 •
Mathematics
Coca-Cola comes in 2 low-calorie varieties: Diet Coke and Coke Zero. If a promoter has 10 cans of each how many ways can she select 3 cans of each for a taste test at the local mall?
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Ответ:
There are 14,400 possible ways to do this
Step-by-step explanation:
Here, we have a selection problem. What to use is combination obviously.
For a combination problem, we would be selecting a specific number from a given total. For a case where we have n number of things and we are looking for how many ways to select r number of things, this can be done in nCr ways and this is mathematically equal to n!/(n-r)!r!
For the Diet coke, she has 10 bottles and want to select 3 for tasting, the number of ways she can do this is mathematically equal to 10C3. Computationally this is equal to ;
10!/(10-3)!3! = 10!/7!3! = 120 ways
For the coke zero, we have the same pattern, selecting a total number of 3 out of 10. This means the same 10C3 with the answer being 120 ways also.
Now, the number of ways of selecting from both would be a multiplication of both answers which is 120 ways * 120 ways = 14,400 ways
Ответ:
15
Step-by-step explain
3 3/4 divided by 1/4
3 3/4=15/4
15/4 divided by 1/4=15