Mr. i does a job in x hours while mr. l can do it in y hours. how much of the job could they do together if they were to work for k hours?

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

the anwser is d) 75°

step-by-step explanation: