The average of the six numbers is x. If the average of the first five number is s, what is the value of the sixth number?

A 6s - 5x

B 6x – 5s

C 6x – s

D 6x - 3s

Correct Answer: Option B

sum of the 5 numbers/5 = s so , sum of 5 numbers=5s again suppose, sum of 5 number+6th number=6x so , 6th number =6x-5s