IDNStudy.com, ang iyong mapagkukunan para sa mga sagot ng eksperto. Tuklasin ang mga kumpletong sagot sa iyong mga tanong mula sa aming komunidad ng mga eksperto.

A woman leaves home in a automobile on a business trip. Twenty minutes later, her husband discovers that she left her briefcase behind and decides to overtake her in another car. The husband knows that his wife averages 45 mi/hr and he averages 60 mi/hr. How long will it be until he overtakes his wife?