(For question # 4-5) The number of hours required to finish a certain job varies inversely as the number of persons on the job. If 8 persons require 6 hours to finish the job, how long should it take for 24 persons?

4. What is the value of the constant of variation k? a 48 b. 24 C. 12 d. 6

5. If 8 persons require 6 hours to finish the job, how long should it take for 24 persons?
a .1 hours
b .2 hours
C. 3 hours
D. 4 hours​