i need help with these questions!

Question

amiri can deliver his newspapers in 85 minutes. it takes horus 62 minutes to do the same route. how long would it take them to deliver the newspapers if they work together?

suppose that player a can run 100 yards in 44 seconds. further suppose that player b can run 100 years in 33 seconds. suppose that player a catches a pass at his own 18 yard like in stride and starts running away from player b who is at 11 yard like directly behind player a. at what yard like will player b catch up to player a?

Answer 1

In x minutes Amiri delivers x/85 of the papers

In x minutes Horus delivers x/62 of the papers

 

x/85 + x/62 = 1       Multiply both sides by LCD