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Ms.Janet, I just can't figure out. Can please assist the following:-

A van travelling at 60km/h left Town A for Town B at 7.00am. At 7.30am, a car left Town A for Town B. If the car travelled at an average speed of 80km/h, at what time would it catch up with the van?

The van travels for an hour before the car starts.
hour 60 km/hour = 30 km
The van has a 30 km head start.

The distance between the van and car decreases by 80-60 = 20 km/h.
30 km h/(20 km) = 1.5 h
The car will catch up to the van in 1.5 hours, at 9:00

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Janet Yang


Word problems are my favorite type of math questions! I would not feel comfortable answering questions that require specialized knowledge (Physics, Statistics, etc.) because I have not studied these in depth.


I tutor students (fifth through twelfth grades) and am a Top Contributor on Yahoo!Answers with over 24,000 math solutions.

Co-author of An Outline of Scientific Writing: For Researchers With English as a Foreign Language.

I have a Bachelor's degree in Applied Mathematics from the University of California at Berkeley, and a Master of Business Administration degree from The Wharton School.

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George White Elementary School. Homework Help program at the Ridgewood Public Library, Ridgewood, NJ. Individual students.

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