Answer:
13.7113092008
Step-by-step explanation:
hope this helps
Answer: Work done by both of them in k hours is

Explanation:
Since we have given that
Number of hours Mr. I does a job = x hours
Number of hours Mr. L does a job = y hours
Work done by Mr. I is given by

Work done by Mr. L is given by

Work done if they do together is given by

Work done if they work together for k hours is given by

Hence, work done by both of them in k hours is

Answer:
-8
Step-by-step explanation:
5(x+12)= 20
5x+60= 20
5x= -40
x= -8