Question

P and q are two points 100 km apart. A starts from p towards q at 10 km/hr. B starts running from q at exactly the same time and in the same direction as that of A at 20 km/hr. After an hour, B turns back and changes his speed to 10 km/hr. After another hour, B again turns back and changes his speed to 20 km/hr. He keeps on changing his speed and direction in this same manner until the time he meets A. After how much time will A and B meet for the first time?

Name: p and q are two points 100 km apart a starts from p towards q at 10kmhr b starts running from q at exactly same time and in the same direction as that of a at 20kmhr after an hour b turns ba 39454
Uploaded: 2024-11-01T13:27:54-08:00
Duration: 3 min 46 s
Channel: Audrey Fong
Description: p and q are two points 100 km apart a starts from p towards q at 10kmhr b starts running from q at exactly same time and in the same direction as that of a at 20kmhr after an hour b turns ba 39454

          P and q are two points 100 km apart. A starts from p towards q at 10 km/hr. B starts running from q at exactly the same time and in the same direction as that of A at 20 km/hr. After an hour, B turns back and changes his speed to 10 km/hr. After another hour, B again turns back and changes his speed to 20 km/hr. He keeps on changing his speed and direction in this same manner until the time he meets A. After how much time will A and B meet for the first time?

Added by Lidia P.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Audrey Fong

11/01/2024

Step 1

A starts from point P at 10 km/hr, and B starts from point Q at 20 km/hr. The distance between P and Q is 100 km. Show more…

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P and q are two points 100 km apart. A starts from p towards q at 10 km/hr. B starts running from q at exactly the same time and in the same direction as that of A at 20 km/hr. After an hour, B turns back and changes his speed to 10 km/hr. After another hour, B again turns back and changes his speed to 20 km/hr. He keeps on changing his speed and direction in this same manner until the time he meets A. After how much time will A and B meet for the first time?