Mr.ariel and mr. Teddy are planning to paint tha house together.mr.arielthinkin that if.he work alone it would take him 5 hours more than the time mr. Teddy takes to paint the the house .working together they can complete the job in 6hours. How long will mr. Ariel paint the house alone
If Ariel takes x hours, then it takes Teddy (x-5) hours. So, adding up all their work, you get
1/x + 1/(x-5) = 1/6
Now just find x