Hello,
|190-210|+|19-21|+x=100
==>|-20|+|-2|+x=100
==>20+2+x=100
==>x=100-22
==>x=78
Thus there is a mistake in your question !
To find the number of employees we use combination formula.
n!/(n-r)! r!
Put values
11!/(11-3)! 3!
Simplify
11!/8!3! = 165
Answer: Option A 165
Answer:
Dividing by 7
Step-by-step explanation:
1. Find the common term in the fraction 7
divided all by 7
If no repeats, there are 8×7×6×5×4×3×2×1=40320.