Answer:
The solution is given as
Step-by-step explanation:
It is given that
As
where a and b are the lower and upper limits of the bound respectively.
On comparison it is observed that
So the equation is given as
So the solution is given as
Work Shown:
7 ways to pick the president.
6 ways to pick the VP
5 ways to pick the secretary
7*6*5 = 210 ways to pick the three people from a pool of seven. Order matters because the positions are different. Note the count down from 7 to 6 to 5 which indicates that any given person cannot run for more than one office.
You can use the permutation formula with n = 7 and r = 3
The permutation formula is where the exclamation marks represent factorials.