The formula to find the number of security staff is given.
The formula is
Number of security staff = [tex] \frac{a}{100} [/tex]
Where, a = Number of audience.
Here number of audience given = 10500.
So here a = 10500.
By plugging in the value of a we will get the required number of security staff.
We will get,
Number of security staff = [tex] \frac{10500}{100} [/tex]
= [tex] \frac{(105)(100)}{100} [/tex]
= [tex] 105 [/tex]
We have got the required answer.
The number of security staff in the event = 105.
