Answer:
The time required to finish the work by both candy and Tim working together = 36.83 minute
Explanation:
Time taken by the candy to finish the work 
 = 85 min
= 85 min
Time taken by the Tim to finish the work 
 = 65 min
 = 65 min
Thus the time taken by both to finish the work = 

Put the values of 
 and
 and 
 we get ,
 we get ,
 
 =
 = 

 
 =
 = 

 
 = 36.83 minute
 = 36.83 minute
Thus the time required to finish the work by both candy and Tim working together = 36.83 minute