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emmasim [6.3K]
3 years ago
13

The newly elected president needs to decide the remaining 7 spots available in the cabinet he/she is appointing. If there are 12

eligible candidates for these positions (where rank matters), how many different ways can the members of the cabinet be appointed?
Mathematics
1 answer:
Anna71 [15]3 years ago
8 0

Answer: The total number of ways are 792 ways.

Explanation:

The total number of spots available is 7.

The total number of eligible candidate is 12.

To find the number of combinations we have a combination formula.

^nC_r=\frac{n!}{r!(n-r)!}

Where n is total number of of objects and r is the number of selected objects.

Since we have to select 7 spots from 12 candidates, therefore the total number of ways is calculated as shown below,

^{12}C_7=\frac{12!}{7!(12-7)!}

^{12}C_7=\frac{12\times 11\times 10\times 9\times 8\times7!}{7!5!}

^{12}C_7=\frac{12\times 11\times 10\times 9\times 8}{5\times 4\times 3\times 2\times 1}

^{12}C_7=792

Therefore, the total number of ways are 792 ways.

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