Question 1087825

Jessie and Mark are planning to paint a house together. Jessie thinks that if he works alone, it would take him 5 hours more than the time Mark takes to paint the entire house. Working together, they can complete the job in 6 hours.

QUESTION: If Mark can finish the job in m hours, how long will take it take jessie to finish the job?
<pre>Jessie completes the job in: {{{highlight_green(matrix(1,2, 15, hours))}}}