The number of hours required to finish a certain job varies inversely as the number of persons on the job. If 12 persons require 12 hours to finish the job, how long would it take 16 persons to do the job?
A.6
B.9
C.12
D.16
WRITE WITH SOLUTION
A.6
B.9
C.12
D.16
WRITE WITH SOLUTION
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Given:
12 persons - 12 hours - 16 person
Solution:
12 persons x 12 hours
= 144
* Divide 144 to 16 persons
144/16
= 9
The final answer is B. 9